and
and介绍
expr1 and expr2 - 逻辑与运算。
Examples:
> SELECT true and true;
true
> SELECT true and false;
false
> SELECT true and NULL;
NULL
> SELECT false and NULL;
false
Since: 1.0.0
expr1 and expr2 - 逻辑与运算。
Examples:
> SELECT true and true;
true
> SELECT true and false;
false
> SELECT true and NULL;
NULL
> SELECT false and NULL;
false
Since: 1.0.0