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MySQL query to replace part of string before dot
For this, use CONCAT() along with SUBSTRING_INDEX(). Let us first create a −
mysql> create table DemoTable1424 -> ( -> Value varchar(60) -> ); Query OK, 0 rows affected (0.56 sec)
Insert some records in the table using insert −
mysql> insert into DemoTable1424 values('567.78483733');
Query OK, 1 row affected (0.78 sec)
mysql> insert into DemoTable1424 values('1023.45252443');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable1424 values('7893322.5635543434');
Query OK, 1 row affected (0.35 sec)
mysql> insert into DemoTable1424 values('90944.665665');
Query OK, 1 row affected (0.14 sec)Display all records from the table using select −
mysql> select * from DemoTable1424;
This will produce the following output −
+--------------------+ | Value | +--------------------+ | 567.78483733 | | 1023.45252443 | | 7893322.5635543434 | | 90944.665665 | +--------------------+ 4 rows in set (0.00 sec)
Following is the query to replace part of string before dot −
mysql> update DemoTable1424
-> set Value=concat('10000.',substring_index(Value ,'.',-1));
Query OK, 4 rows affected (0.13 sec)
Rows matched: 4 Changed: 4 Warnings: 0Let us check the table records once again −
mysql> select * from DemoTable1424;
This will produce the following output −
+------------------+ | Value | +------------------+ | 10000.78483733 | | 10000.45252443 | | 10000.5635543434 | | 10000.665665 | +------------------+ 4 rows in set (0.00 sec)
Updated on: 12-Nov-2019
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