MySQL basis (3) | function

MySQL basis (3) | function

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Foreword

MySQL only scalar-valued function of the concept, not the kind of SqlServer table-valued function.

grammar

1. create

create function f_add(
    a int,
    b int
)
returns int
return 
    (select a + b);
    
select f_add(1, 2);

1. modify

alter function f_add()...

1. delete

DROP FUNCTION [ IF EXISTS ] <自定义函数名>

Reference: http://c.biancheng.net/view/2590.html