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Store a variable with the result of a MySQL SELECT CASE?
For this, use SELECT CASE. Let us first create a table −
mysql> create table DemoTable -> ( -> Num1 int, -> Num2 int -> ); Query OK, 0 rows affected (0.65 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(10,30); Query OK, 1 row affected (0.11 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
This will produce the following output −
+------+------+ | Num1 | Num2 | +------+------+ | 10 | 30 | +------+------+ 1 row in set (0.00 sec)
Following is the query to store a variable with the result of a SELECT CASE.−
mysql> select case -> WHEN Num1=Num2 THEN "Equal" -> WHEN Num1 > Num2 THEN "Greater" -> WHEN Num1 < Num2 THEN "Lower" end -> from DemoTable -> into @s; Query OK, 1 row affected (0.01 sec)
Let us check the value in the above variable.
mysql> select @s;
Output
This will produce the following output −
+-------+ | @s | +-------+ | Lower | +-------+ 1 row in set (0.00 sec)
Updated on: 30-Jun-2020
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