What does MINUS do in SQL?

The SQL MINUS operator is used to return all rows in the first SELECT statement that are not returned by the second SELECT statement. Each SELECT statement will define a dataset. The MINUS operator will retrieve all records from the first dataset and then remove from the results all records from the second dataset.

How do you subtract in SQL query?

Plus(+), minus(-), multiply(*), and divide(/). Name of the table….Arithmetic Operators.

What is difference between MINUS and except in SQL?

There is no difference between Oracle MINUS and SQL Server EXCEPT. They are intended to do the same thing. This will check for any result set from the first query, then run the except if there is a result. If not it only runs the second query.

How to compare the case clauses in DB2?

Code language: SQL (Structured Query Language) (sql) In this syntax, Db2 compares the expression in the CASE clause with each expression (expression_1, expression_2, …) in the WHEN clause sequentially from top to bottom.

What does the minus operator do in SQL?

Besides the UNION, UNION ALL, and INTERSECT operators, SQL provides us with the MINUS operator that allows you to subtract one result set from another result set. The following illustrates the syntax of the MINUS operator.

What does the DB2 EXCEPT operator do in SQL?

The Db2 EXCEPT combines two or more result sets of subselects. It returns the result set of the first subselect minus any matching rows of the result of the second subselect.

How does DB2 return the result in the then clause?

In this syntax, Db2 compares the expression in the CASE clause with each expression (expression_1, expression_2, …) in the WHEN clause sequentially from top to bottom. Db2 returns the corresponding result in the THEN clause (result_1, result_2, …) if it finds a match (expression = expression1, expression = expression2 …).