postgresql Pgsql。在函数中返回字段作为插入结果
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Pgsql. Returning field as insert result in function
提问by dio_bless
I can return id as an INSERT
result, like
结果我可以返回 id INSERT
,比如
INSERT INTO table(id,field) VALUES($id,$value) RETURNING id;
But i cannot return it and assign to variable into my function
但我不能返回它并将变量分配到我的函数中
var = INSERT INTO table(id,field) VALUES($id,$value) RETURNING id;
or
或者
SELECT INTO var INSERT INTO table(id,field) VALUES($id,$value) RETURNING id;
don't work. How can i do it?
不工作。我该怎么做?
回答by Roman Pekar
Try this:
试试这个:
INSERT INTO table(id,field)
VALUES($id,$value)
RETURNING id into var;
回答by Kirk Roybal
You could also use:
您还可以使用:
var := (INSERT INTO table(id,field) VALUES($id,$value) RETURNING id);
Readability is of course a personal preference, but I like this syntax because it shows an obvious assignment.
可读性当然是个人偏好,但我喜欢这种语法,因为它显示了一个明显的分配。