如何解决比较2列，并使用SQL
我正在尝试比较2列
select * from table1
Column_1 column_2
---------------- ------------------
Swetha Swetha is working in Chennai
Raju Raju is studying 10 std
ranjith Rantith played yesterday
how to play how to play Cricket
My name is my name is john
我的输出是
Column_1 column_2 column_3
---------------- ------------------ ------------------------
Swetha Swetha is working in Chennai is working in Chennai
Raju Raju is studying 10 std is studying 10 std
ranjith Rantith played yesterday played yesterday
how to play how to play Cricket Cricket
My name is my name is john john
Column_1 column_2
---------------- ------------------
Swetha working Swetha is working in Chennai
Raju 10th Raju is studying 10th std
输出：
Column_1 column_2 column_3
---------------- ------------------ ------------------------
Swetha working Swetha is working in Chennai is in Chennai
Raju 10th Raju is studying 10th std is studying std
解决方法
您似乎想要replace()：
select t.*,replace(column_2,column_1,'') column_3 from table1 t
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