DCOUNT(database, field, criteria) 
Returns the total number of non blank cells in a database column satisfying certain conditions. 
database  The range of cells that make up the database or list. 
field  The column name or number indicating which column to use. 
criteria  The range of cells that contain the conditions. 
Remarks 
* Any cells containing text, logical values or errors are NOT INCLUDED. See Examples 7, 8 and 15. * For an illustrated example refer to the Specifying Database Criteria page. * The "database" can be a cell reference or a named range. * The "database" range of cells must contain column headings in the first row. See Example 19. * The "field" can be a column label, a column number (left to right) or a cell reference. * The "field" label is not case sensitive. See Example 12. * If "field" is left blank, then the total number of rows matching the criteria is returned. See Example 20. * If "field" contains some text entries, then these are ignored. See Example 7. * If "criteria" is left blank, then #VALUE! is returned. See Example 21. * The "criteria" must include at least one column heading and one cell below the column heading. See Example 16. * The "criteria" must be in a contiguous block of adjacent cells. * The "criteria" can be anywhere on the active sheet, although it is recommended not to put it below the data, in case more data is added later on. * Make sure the "criteria" and "database" ranges do not overlap and that they are always separated by at least one blank row or column. * To perform an operation on an entire column in a database, enter a blank cell below the column heading in the "criteria" range. See Example 11. * If no rows match the criteria, then 0 is returned. See Example 14. * It is possible to use the data from a pivot table. When the "database" range refers to a cell inside a pivot table, the calculation is only performed on the data currently displayed in the pivot table. * You can use the DCOUNTA function to include text, logical values and errors. * You can use the DSUM function to return the sum of values satisfying certain conditions. * You can use the DMAX function to return the maximum value satisyfing certain conditions. * For the Microsoft documentation refer to support.office.com 

1  How many people are called "John" with a valid "Age" using a field label. 2  How many people are called "John" with a valid "Age" using a field number. 3  How many people are either called "John" or "James" with a valid "Salary". 4  How many people are less than 22 years old with a valid "Age". 5  How many people are less than 22 years old or more than 18 years old with a valid "Age". This is basically everyone with a valid "Age". 6  How many people are less than 22 years old and earn more than £20,000 with a valid "Salary". 7  How many people earn more than £20,000 with a valid "Age". Matthew is not included because the "Age" column contains text and text is not included. 8  How many people earn more than £20,000 with a valid "Salary". 9  How many people are called "James" and are more than 18 years old with a valid "Salary". 10  How many people either have the name "James" are less than 22 years old and earn more than £20,000 or have the name "James" and are older than 18 years old with a valid "Salary". 11  How many people have a valid "Salary". Putting a blank cell below the column heading will refer to the entire column. 12  This is the same as 11 but with the field label in uppercase. 13  If the "criteria" refers to a range of empty cells, then the entire column from the "database" range is used. 14  If the "criteria" you specify does not return any rows, then 0 is returned. 15  If the "field" you are trying to count is not numeric in this case "Name", then 0 is returned because any text entries are ignored. 16  If the "criteria" only includes a column heading, then #VALUE! is returned. 17  If the "database" range only includes column headings, then #VALUE! is returned. 18  If the "criteria" refers to a single empty cell, then #VALUE! is returned. 19  If the "database" range does not include column headings, then #VALUE! is returned. 20  If "field" is left blank, the total number of rows matching the criteria is returned, ignoring any text values. 21  If "criteria" is left blank, then #VALUE! is returned. 22  If "field" does not match one of the column headings, then #VALUE! is returned. 
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