The DROP TABLE IF EXISTS statement is used to drop existing database objects. When we create a complex stored procedure, we might also make several intermediate tables (physical tables or temp tables) to store and process the data. Now, we must add the code that drops those intermediate tables in the stored procedure. Otherwise, we might receive an error.

Suppose we have created a stored procedure named sp_getStudentsData. Within it, we are creating an intermediate table named tbl_temp_Student to store and process the data of the tblStudent table. However, we don’t add the code to drop that temporary table.

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Understanding DROP TABLE IF EXISTS SQL Statement
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