如何在多个 DataGrip 查询中使用一个变量？

Question

鉴于我有一堆疑问例如

delete from permissions where user_id = 9845 and project_id =2;
delete from users_projects where user_id = 9845 and project_id =2;
delete from users where id = 9845 and project_id =2;

如何避免每次运行这些时都必须在每个查询中更新 user_id？

理想情况下，像

var userId = 9845

delete from permissions where user_id = userId and project_id =2;
delete from users_projects where user_id = userId and project_id =2;
delete from users where id = userId and project_id =2;

我尝试使用 ? 和 :userId 例如

delete from permissions where user_id = :userId and project_id =2;
delete from users_projects where user_id = :userId and project_id =2;
delete from users where id = :userId and project_id =2;

这会提示我通过对话框输入用户 ID，这很好，但我必须为每一行输入 ir。

我希望能够更新一个地方/输入一次值。

DataGrip 可以吗？

Answer 1

您可以使用 ${variable_name} 语法为查询输入一次值：

delete from permissions where user_id = ${userId} and project_id =2;
delete from users_projects where user_id = ${userId} and project_id =2;
delete from users where id = ${userId} and project_id =2;

如何在多个 DataGrip 查询中使用一个变量？

How to use a variable in multiple DataGrip queries?

sql

postgresql

datagrip