Quite often, Excel users have a task of comparing two tables or lists to identify differences in them or missing items. Each user copes with this task in its own way, but most often a rather large amount of time is spent on solving the specified question, since not all approaches to this problem are rational. At the same time, there are several proven actions algorithms that will allow compare lists or table arrays in fairly short time with minimal considerable effort. Let's consider details these options.

There are quite a few ways to compare table areas in Excel, but all of them can be divided into three large groups:

comparison of lists on one sheet;

comparison of tables located on different sheets;

comparison of tables in different files.

It is based on this classification, first of all, the comparison methods are selected, and specific actions and algorithms are determined to perform the task. For example, when comparing, in different books, two Excel files are required simultaneously.

In addition, it should be said that to compare the tabular areas makes sense only when they have a similar structure.

Method 1: Simple Formula

The easiest way to compare data in two tables is the use of a simple formula of equality. If the data coincides, then it gives the indicator of truth, and if not, then - a lie. You can compare, both numeric data and text. The disadvantage of this method is that it can only be used if the data in the table is ordered or sorted equally, synchronized and have an equal number of lines. Let's see how to use this method in practice on the example of two tables placed on one sheet.

So, we have two simple tables with lists of enterprise employees and their salary. You need to compare the list of employees and identify inconsistencies between columns in which the names are located.

1. To do this, we will need an additional column on the sheet. Enter the sign there «=» . Then click on the first name, which must be compared in the first list. Again set the symbol «=» from the keyboard. Next, click on the first cell of the column, which we compare in the second table. It turned out the expression of the following type:

   

   Although, of course, in each case, the coordinates will differ, but the essence will remain the same.

2. Click on the key ENTERto get the results of the comparison. As you can see, when comparing the first cells of both lists, the program indicated the indicator "TRUE"What does the data coincide.



3. Now we need to carry out a similar operation and with the other cells of both tables in the columns that we compare. But you can simply copy the formula, which will allow to significantly save time. This factor is especially important when comparing lists with a large number of lines.

   The copying procedure is easiest to complete with a filling marker. We bring the cursor to the right lower corner of the cell, where we received an indicator "TRUE". At the same time, he must transform into a black cross. This is a filling marker. We click the left mouse button and pull the cursor down on the number of lines in the tables compared to the table arrays.



4. As you can see, now the additional column displays all the results of the data comparison in two columns of table arrays. In our case, the data did not coincide only in one row. With their comparison, the formula issued the result "FALSE". For all other stricters, as you can see, the comparison formula issued an indicator "TRUE".



5. In addition, there is an opportunity with the help of a special formula to calculate the number of discrepancy. To do this, we highlight the element of the sheet where it will be output. Then click on the icon "Insert a function".



6. In the window Masters functions in the group of operators "Mathematical" Allocate the name Summipa. Click on the button Ok.



7. The function arguments window is activated. SummipaThe main task of which is to calculate the amount of the dedicated range. But this feature can be used for our purposes. She is quite simple syntax:

   Summaging (array1; array2; ...)

   In total, addresses up to 255 arresses can be used as arguments. But in our case, we will use only two arrays, besides, as one argument.

   Put the cursor in the field "Massive1" and allocate a compared data range in the first area on the sheet. After that, in the field put a sign "not equal" (<> ) and allocate a compared range of the second area. Next, we sell the resulting expression with brackets, in front of which we put two characters «-» . In our case, it turned out such an expression:

   - (A2: A7<>D2: D7)

   Click on the button Ok.



8. The operator makes the calculation and displays the result. As we see, in our case, the result is equal to the number "one"That is, it means that one incompariety was found in compared lists. If the lists were completely identical, then the result would be equal to the number «0» .

In the same way, you can compare the data in the tables that are located on different sheets. But in this case, it is desirable that the lines in them are numbered. The rest of the comparison procedure is almost exactly the same as described above, besides the fact that when making the formula, it is necessary to switch between sheets. In our case, the expression will have the following form:

B2 \u003d List2! B2

That is, as we see, in front of the data coordinates, which are located on other sheets other than where the comparison result is displayed, the sheet number and an exclamation mark is indicated.

Method 2: Selection of groups of cells

Comparison can be made using the tool for the separation of groups of cells. With it, you can also compare only synchronized and ordered lists. In addition, in this case, lists must be located next to each other on one sheet.

Method 3: Conditional Formatting

You can make a comparison by applying conditional formatting method. As in the previous method, compared areas should be on a single Excel working sheet and be synchronized with each other.

There is another way to apply conditional formatting to perform the task. Like the previous options, it requires the location of both compared areas on one sheet, but in contrast to the previously described methods, the synchronization condition or sorting data will not be compulsory, which distinguishes this option from previously described.

If you wish, you can, on the contrary, paint the inconsistent elements, and the indicators that match, leave with the fill of the previous color. At the same time, the algorithm of action is almost the same, but in the settings window allocate the repetitive values \u200b\u200bin the first field instead of the parameter "Repeating" You should select a parameter "Unique". After that click on the button Ok.

Thus, it is precisely those indicators that do not coincide.

Method 4: Comprehensive Formula

Also compare the data with the help of a complex formula, the basis of which is the function Countess. Using this tool, you can calculate how much each element from the selected column of the second table is repeated in the first.

Operator Countess refers to the statistical group of functions. Its task is to count the number of cells, the values \u200b\u200bin which satisfy the specified condition. The syntax of this operator has this kind:

Schedule (Range; Criterion)

Argument "Range" It represents the address of the array, which calculates the coincident values.

Argument "Criterion"sets the condition of the coincidence. In our case, it will be the coordinates of the specific cells of the first tabular area.

Of course, this expression in order to compare table indicators, it is possible to apply in the existing form, but it is possible to improve it.

We will make that the values \u200b\u200bthat exist in the second table, but are not available in the first, were displayed as a separate list.

1. First of all, we recycle our formula Countess, namely we will make it one of the operator arguments IF A. To do this, select the first cell in which the operator is located Countess. In the line formulas in front of it add expression "IF A" Without quotes and open brackets. Next, so that it is easier for us to work, allocate the value in the line formula "IF A" and click on the icon "Insert a function".



2. Opened function arguments IF A. As you can see, the first window of the window has already been filled with the operator's value. Countess. But we need to add something else in this field. We install the cursor and the already existing expression add «=0» without quotes.

   After that go to the field "Meaning if truth". Here we will use another nested function - LINE. Enter the Word "LINE" Without quotes, further open brackets and indicate the coordinates of the first cell with the surname in the second table, after which we close brackets. Specifically in our case in the field "Meaning if truth" It turned out the following expression:

   Row (D2)

   Now operator LINE will report functions IF A The number of the string in which the specific surname is located, and in the case when the condition specified in the first field will be performed, the function IF A Will output this number in the cell. Click on the button Ok.



3. As you can see, the first result is displayed as "FALSE". This means that the value does not satisfy the conditions of the operator IF A. That is, the first surname is present in both lists.



4. Using the filling marker, the already familiar way copying the expression of the operator IF A On the whole column. As we see, in two positions that are present in the second table, but not in the first, the formula issues rows numbers.



5. Retreat from the table area to the right and fill in the column numbers in order, ranging from 1 . The number of rooms must coincide with the number of rows in the second compaable table. To speed up the numbering procedure, you can also use the fill marker.



6. After that, we highlight the first cell to the right of the speaker with the numbers and click on the icon "Insert a function".



7. Opens Master of Functions. Go to category "Statistical" and make a choice of name "LEAST". Click on the button Ok.



8. Function LEASTThe window of the arguments of which was disclosed, intended to withdraw the specified smallest value.

   In field "Array" You should specify the coordinates of the range of the additional column "Number of coincidences"which we previously transformed using the function IF A. We make all links absolute.

   In field "K" It is indicated what the least value should be displayed. Here we indicate the coordinates of the first cell of the column with the numbering, which we recently added. Address Leave relative. Click on the button Ok.



9. The operator displays the result - the number 3 . It is it that is the smallest of the numbering of the inconsistent lines of table arrays. Using the filling marker, copy the formula to the nose itself.



10. Now, knowing the rows of the incomprehensive elements, we can insert into the cell and their values \u200b\u200busing the function INDEX. Select the first element of the sheet containing the formula LEAST. After that, go to the formula string and before the name "LEAST" Add name "INDEX" Without quotes, immediately open the bracket and put a point with a comma ( ; ). Then we highlight the formula name in the line "INDEX" and click on pictogram "Insert a function".



11. After that, a small window opens, in which it is necessary to determine if the reference should have a function INDEX or designed to work with arrays. We need a second option. It is installed by default, so that in this window just click on the button Ok.



12. The function arguments window starts INDEX. This operator is designed to output a value that is located in a specific array in the specified line.

    As you can see the field "Row number" Already filled with function values LEAST. From an existing value there, the difference between the numbering of the Excel sheet and the internal numbering of the tabular region. As we see, we only have a hat on the table values. This means that the difference is one line. So add in the field "Row number" value "-one" without quotes.

    In field "Array" Indicate the address of the range of values \u200b\u200bof the second table. At the same time, all the coordinates make absolute, that is, we put the dollar sign before the method described by us.

    Click on the button Ok.



13. After withdrawing, the result on the screen is stretching the function using the fill marker to the end of the column down. As we see, both surnames that are present in the second table, but are not available in the first, are removed in a separate range.

Method 5: Comparison of arrays in different books

When comparing the ranges in different books, you can use the above methods, excluding those options where the placement of both tabular areas on one sheet is required. The main condition for the comparison procedure in this case is the opening of the windows of both files at the same time. For versions of Excel 2013 and later, as well as for versions to Excel 2007, there are no problems with the implementation of this condition. But in Excel 2007 and Excel 2010 in order to open both windows at the same time, additional manipulations are required. How to do it tells in a separate lesson.

As you can see, there are a number of possibilities to compare tables with each other. What kind of option to use depends on where the table data relative to each other is located (on one sheet, in different books, on different sheets), as well as from the user wants this comparison to be displayed on the screen.

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After installing the superstructure, you will have a new tab with the function call command. Pressing the command Comparison of ranges A dialog box appears for entering parameters.

This macro allows you to compare tables of any volume and with any number of columns. Comparison of tables can be carried out by one, two or three columns at the same time.

The dialog box is divided into two parts: the left for the first table and the right for the second.

To compare tables, you must perform the following steps:

• Specify tables of tables.
• Set the checkbox (check / bird) under the selected range of the tables if the table includes a header (header string).
• Select columns of the left and right table for which the comparison will be carried out (if the ranges of the tables do not include the columns headers will be numbered).
• Specify the type of comparison.
• Select option for issuing results.

Type of comparing tables

The program allows you to select multiple types of table comparisons:

Find lines of one table that are missing in another table

When this type of comparison is selected, the program is looking for lines of one table that are missing in another. If you are mapping a table in several columns, then the result will be the lines in which there is a distinction for at least one of the columns.

Find matching strings

When this type of comparison is selected, the program finds the strings that match the first and second tables. The strokes in which the values \u200b\u200bin the selected comparison columns (1, 2, 3) are completely coincided with the values \u200b\u200bof the second table columns.

An example of the program in this mode is presented to the right in the picture.

Match table based on selected

In this comparison mode, opposite each row of the first table (selected as the main), the data of the matching line of the second table is copied. In the event that there are no matching lines, the line opposite the main table remains empty.

Comparison of tables in four or more columns

If you lack the program functionality and you need to match the tables in four or more columns, then you can exit the position as follows:

• Create in tables on an empty column.
• In new columns using the formula \u003d Tie Combine the columns that you want to make a comparison.

Thus, you will receive 1 column containing the values \u200b\u200bof several columns. Well, how to match one column you already know.

Perhaps everyone who works with the data in Excel faces the question of how to compare two columns in Excel on coincidence and differences. There are several ways to do it. Let's look at the details each of them.

How to compare two columns in Excel for rows

Comparing the two columns with data, it is often necessary to compare the data in each individual line on the coincidence or difference. We can make such an analysis using a function. Consider how it works on the examples below.

Example 1. How to compare two columns on coincidence and differences in one row

In order to compare the data in each line of two columns in Excel, we will write a simple formula. Insert the formula should be in each line in a nearby column, next to the table in which the main data is posted. By creating a formula for the first line of the table, we can stretch it / copy to the other lines.

In order to check whether the two columns of one line contain the same data, we will need a formula:

\u003d If (A2 \u003d B2; "coincide"; "")

The formula that determines the differences between the two columns in one line will look like this:

\u003d If (A2<>B2; "Do not match"; "")

We can follow the check on the coincidence and the differences between the two columns in one line in the same formula:

\u003d If (a2 \u003d b2; "coincide"; "do not match")

\u003d If (A2<>B2; "Do not match"; "Match up")

An example of the result of calculations may look like this:

In order to compare the data in two columns of one line, with regard to the register, the formula should be used:

\u003d If (coincide (A2, B2); "coincides"; "unique")

How to compare several columns on match in one Excel line

In Excel, it is possible to compare the data in several columns of one row in the following criteria:

• Find rows with the same values \u200b\u200bin all columns of the table;
• Find rows with the same values \u200b\u200bin any two table columns;

Example1. How to find coincidences in one row in several columns of the table

Imagine that our table consists of several columns with data. Our task to find lines in which values \u200b\u200bcoincide in all columns. This will be helped by the Excel functions and. The formula for determining the coincidences will be as follows:

\u003d If (and (a2 \u003d b2; a2 \u003d c2); "coincide"; "")

If there are a lot of columns in our table, it will easily use a function in combination with:

\u003d If (counted ($ A2: $ C2; $ A2) \u003d 3; "coincide"; "")

In the formula as "5" indicates the number of columns of the table for which we created the formula. If your table is more or less in your table, then this value should be equal to the number of columns.

Example 2. How to find coincidences in one row in any two table columns

Imagine that our task is to identify from a table with a few columns those strings in which the data coincides or repeated at least in two columns. This will help us with functions and. We write a formula for a table consisting of three columns with data:

\u003d If (or (a2 \u003d b2; b2 \u003d c2; a2 \u003d c2); "coincide"; "")

In cases where there are too many columns in our table - our formula with a function will be very large, since in its parameters we need to specify the criteria for the coincidence between each column of the table. An easier way, in this case, use the function.

\u003d If (b2: d2; a2) + counted (c2: d2; b2) + (c2 \u003d d2) \u003d 0; "Unique string"; "not a unique string")

\u003d If (counted ($ B: $ B; $ A5) \u003d 0; "There are no coincidences in column B"; "There are coincidences in the column in")

This formula checks the values \u200b\u200bin the column B to coincide with the data of the cells in the column A.

If your table consists of a fixed number of rows, you can specify a clear range in the formula (for example, $ B2: $ B10 ). This will speed up the work of the formula.

How to compare two columns in Excel on coincidence and allocate color

When we are looking for coincidences between the two columns in Excel, we may need to visualize the found coincidences or differences in data, for example, using color isolation. The easiest way to highlight the collarms and differences is to use "Conditional Formatting" in Excel. Consider how to do this in the examples below.

Search and highlighting coincidences in several columns in Excel

In cases where we need to find coincidences in several columns, then for this we need:

• Select columns with data in which you need to calculate the coincidences;
• On the Home tab, on the toolbar, click on the "Conditional Formatting" menu item -\u003e "Code Selection Rules" -\u003e "Repeating Values";
• In the pop-up dialog box, select "Repeat" in the left drop-up list, select repeating values \u200b\u200bin the right drop-down list. Click "OK":
• After that, the column will be highlighted in the selected column:

Search and select color matching strings in Excel

Search for coinciding cells with data in two, several columns and search for the coincidences of whole lines with data is different concepts. Pay attention to the two tables below:

The tables above place the same data. Their difference is that on the example of the left we were looking for coinciding cells, and on the right we found entire repeating lines with the data.

Consider how to find matching lines in the table:

• To the right of the table with the data, we will create auxiliary column in which opposite each row with a data with a simple formula that combines all the values \u200b\u200bof the table string in one cell:

\u003d A2 & B2 & C2 & D2

In the auxiliary column you will see the United Table data:

Now, to determine the coinciding lines in the table, take the following steps:

• Select the area with data in the auxiliary column (in our example it is a range of cells E2: E15 );
• On the Home tab, on the toolbar, click on the "Conditional Formatting" menu item -\u003e "Code Selection Rules" -\u003e "Repeating Values";
• In the pop-up dialog box, select in the left drop-down list "Repeating", in the right drop-down list, select how repeated values \u200b\u200bwill be highlighted. Click "OK":
• After that, duplicate lines will be highlighted in the selected column:

Sometimes you want to view in the Access table only those records that are complied with the records from another table containing fields with the coincident data. For example, you may need to see the records of employees who have treated at least one order to determine which of them deserves encouragement. Or you may need to view the contact details of customers living in one city with an employee to organize a personal meeting.

If you need to compare two ACCESS tables and find the coinciding data, two options are possible.

Create a request that combines fields from each table that contains the appropriate data using an existing link or a combination created for the request. This method is optimal in the speed of returning the results of the query, but does not allow combining fields with different types of data.

Create a query to compare fields in which one field is used as a condition for the other. This method usually requires more time, because when merging the line is excluded from the query results before reading the basic tables, while the conditions apply to the query results after reading these tables. But the field can be used as a condition for comparing fields with different types of data, which cannot be done when using associations.

This article discusses the comparison of two tables to identify the coincidence data and a sample of data that can be used in the examples examples is given.

In this article

Comparison of two tables using associations

To compare the two tables using merges, you need to create a selection request, including both tables. If there is no connection between the tables in the fields containing the necessary data, you need to create associations on them. Associations can be created as much as possible, but each pair of combined fields must contain the data of the same or compatible type.

Suppose you work at the university and want to learn how recent changes in curriculum in mathematics influenced students' assessments. In particular, you are interested in estimating those students who have a form of mathematics. You already have a table containing data on profiling subjects, and a table containing the data on students that are studied. Evaluation data is stored in the "Students" table, and data on profiling items in the Specialization Table. To see how after recent changes in the curriculum, estimates have changed from those who specialize in mathematics, you need to view records from the "Students" table corresponding to the records in the Specialization Table.

Preparation of Data Example

In this example, you create a request that defines how recent changes in the curriculum in mathematics influenced students with the appropriate profiling subject. Use the two tables below: "specializations" and "students". Add them to the database.

Access provides several ways to add these tables a sample database. You can manually enter data, copy each table into the program's spreadsheet (for example, Microsoft Office Excel 2007) and then import sheets in Access or you can insert data in a text editor, such as a notepad and then import data from the resulting text files.

In step-by-step instructions, this section explains how to enter data manually on an empty sheet, as well as how to copy examples of tables in Excel and then import them into Access.

Specialization

Student code		Specialization

Students

Student code		Semester	Syllabus	Subject number	Evaluation

If you are going to enter an example of data in a spreadsheet, you can.

Entering data examples manually

If you are not interested in creating a sheet based on the data example, skip the following partition ("Creating sheets with data examples").

Creating sheets with data examples

Creating sheet database tables based on sheets

Comparison of table samples and search for relevant entries using associations

Now everything is ready for comparing the "Students" and "specialization" tables. Since the connections between the two tables are not defined, you need to create merges the corresponding fields in the request. Tables contain several fields, and you will need to create an association for each pair of shared fields: "student code", "year", as well as a "curriculum" (in the "Student Table") and "specialization" (in the Specialization Table) . In this case, we are only interested in mathematics, so you can limit the results of the query using the field condition.

On the tab Creature Press the button Designer of requests.

In the dialog box Adding a table Double-click the table that contains the necessary records ( Students), and then double-click the table with which it compares it ( Specialization).

Close the dialog box Adding a table.

Drag the field Student code from the table Students in field Student code Tables Specialization. A line will appear in the query form between the two tables, which shows that the union is created. Double-click the line to open the dialog box. Union parameters.

Pay attention to the three options in the dialog box. Union parameters. The default option 1. In some cases, additional lines from one table are required to add to the merge settings. Since you need to find only the coinciding data, leave for merging the value 1. Close the dialog box Union parametersBy pressing the button Cancel.

You need to create two more associations. To do this drag the field Year from the table Students in field Year Tables Specializationand then - field Syllabus from the table Students in field Specialization Tables Specialization.

Table Students Double click Star ( * ) To add all the fields of the table in the request form.

Note: Students. *.

Table Specialization Double-click the field SpecializationTo add it to the blank.

Show column Specialization.

In line Selection condition column Specialization Enter Mat.

On the tab Constructor in a group results Press the button Perform.

Comparison of two tables using the field as a condition

Sometimes it is necessary to compare tables based on fields with matching values, but different types of data. For example, the field in one table may have a numeric data type, and it is necessary to compare it with a field from another table, which has a text data type. Fields containing similar data from different types may appear when saving numbers as text (for example, when importing data from another program). Since it is impossible to create field combining fields with different types of data, you will need to use another way. To compare two fields with different type data, you can use one field as a condition for the other.

Suppose you work at the university and want to learn how recent changes in curriculum in mathematics influenced students' assessments. In particular, you are interested in estimating those students who have a form of mathematics. You already have the "specialization" and "students" tables. Evaluation data is stored in the "Students" table, and data on profiling items in the Specialization Table. To see how the assessments have changed from those who specialize in mathematics, you need to view recordings from the "Students" table, corresponding to the records in the Specialization Table. However, one of the fields you want to use to compare tables, the data type is not like the field with which it is compared.

To compare the two tables using the field as a condition, you need to create a selection request, including both tables. Turn on the field request you want to display, as well as the field corresponding to the field that will be used as a condition. Create a condition for comparing tables. You can create as many conditions as the fields are required for comparison.

To illustrate this method, we use, but in the "Student Code" field, the "specialization" table will change the number of data on text. Since it is impossible to create a combination of two fields with different types of data, we will have to compare two fields "student code" using one field as a condition for the other.

Changing the data type in the "Student Code" field "Specialization"

Open the database in which you saved examples of tables.

IN areas of navigation Click the "specialization" table with the right mouse button and select item. Constructor.

The "specialization" table will open in the constructor mode.

In column Data type Change for field Student code Data type Number on the Text.

Close the "specialization" table. Press the button YesWhen you are prompted to save changes.

Comparison of table examples and search for relevant entries using field condition

Below is shown how to compare the two fields "student code" using the field from the "Students" table as the condition for the field from the Specialization Table. With the help of a keyword Like You can compare two fields, even if they contain different types of data.

On the tab Create in a group Other Press the button Designer of requests.

In the dialog box Adding a table Double-click Table Studentsand then table Specialization.

Close the dialog box Adding a table.

Drag the field Year from the table Students in field Year Tables Specializationand then - field Syllabus from the table Students in field Specialization Tables Specialization. These fields contain the data of the same type, so for their comparison, you can use associations. To compare fields with a single type data, it is recommended to use merges.

Double click Star ( * ) Table StudentsTo add all the fields of the table in the request form.

Note: When using an asterisk to add all fields in the form, only one column is displayed. The name of this column includes the name of the table, followed by the point (.) And asterisk (*). In this example, the column gets the name Students. *.

Table Specialization Double-click the field Student codeTo add it to the blank.

In the query form, uncheck the box in the string Show column Student code. In line Selection condition column Student code Enter Like [Students]. [Student code].

Table Specialization Double-click the field SpecializationTo add it to the blank.

In the query form, uncheck the box in the string Show column Specialization. In line Selection condition Enter Mat.

On the tab Constructor in a group results Press the button Perform.

The request is executed, and evaluations are displayed in mathematics of only those students who have this subject profiling.