How can you count the number of rows from a table TAB?

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By applying the following query:

SELECT COUNT(*) FROM TAB

To count the number of rows from a table named TAB in IBM Db2, you can use the COUNT function in a SQL query. Here’s an example:

SELECT COUNT(*) FROM TAB;

This query will return the number of rows in the TAB table. The COUNT(*) function counts all rows in the specified table.

Make sure to replace “TAB” with the actual name of your table.