MySQL stored procedure Case statement syntax and example tutorial

And then we're going to talk about the MySQL Tutorial stored procedure Case statement syntax and example tutorial Oh, home page let's look at a brief description of the case statement, and then illustrate the specific usage of the cases with an example.

Case statement.

A case statement is a bit more complicated than if, and it can construct more complex conditions.

Case Condtion

When Whenvalue THEN statlist

[when value then Statmentlist]

[Else Statmentlist]

End case

Or

Case

When Scontion then Stlist

[When Sconteiont then Statlist]

[Else Statlst]

End case

In programming, if most of the statements can be done in case, of course, all the cases of the example can be completed, let's look at an instance of the sample tutorial .

Case

When iid=2 Then

Set @x= @x1 +dcount;

Else

Set @x2 = @x2 + DCount;

End case;

Or

Case ID

When 2 Then

@x1 = @x1 + 5;

Else

@x111cn. NET = @x111cn. net+ ' www.111cn.net ';

End case;

All right, about case syntax and instance usage we've all given an example of how to view articles if you don't understand them.

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