我将运行这样的查询
SELECT * FROM table1
WHERE datasource_detail = '{"datasource_detail":[{"db_name":"database_temp","port":"3306","db_username":"root","host":"localhost","tab1":"table1","tab2":"table2"}]}'
但是需要获取参数
我尝试了这个,但是效果不好
SELECT * FROM table1
WHERE datasource_detail = '{"datasource_detail":[{"db_name":"database_temp","port":"3306","db_username":"root","host":"localhost","tab1":"'${tab1}'","tab2":"'${tab2}'"}]}'
有人帮助我吗?
哦,我在pentaho数据集成中运行此查询:输入表
我建议您应该尝试将比较值放在@Variable中
Declare @Compared_Value nvarchar(500);
Set @Compared_Value = '{"datasource_detail":[{"db_name":"database_temp","port":"3306","db_username":"root","host":"localhost","tab1":"'${tab1}'","tab2":"'${tab2}'"}]}'
SELECT * FROM table1
WHERE datasource_detail = @Compared_Value
如果比较值的一部分是动态的,则应使用CONCAT语句来建立比较值设置@Compared_Value = CONCATE(part1,part 2,...)