check-constraints
CHECK constraint in MySQL is not working
First I created a table like CREATE TABLE Customer ( SD intege开发者_JAVA百科r CHECK (SD > 0), Last_Name varchar (30),[详细]
2022-12-17 00:20 分类:问答Postgres CHECK() expression in column with array
I can\'t find how to check each element of an array-field in a table. Be like: create table tab ( day_in_mounth int[12] check ( *every array element* > 0 and < 30)[详细]
2022-12-07 17:50 分类:问答