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How to get everything before the last occurrence of a character in MySQL?
You can use below syntax. Following is the syntax −
update yourTableName set yourColumnName=REVERSE(SUBSTRING(REVERSE(yourColumnName), INSTR(REVERSE(yourColumnName), '.')));
Let us first create a table −
mysql> create table DemoTable -> ( -> Words text -> ); Query OK, 0 rows affected (0.51 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('Value1. Value2 .Value3.Value4.Value5');
Query OK, 1 row affected (0.22 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
This will produce the following output −
+--------------------------------------+ | Words | +--------------------------------------+ | Value1. Value2 .Value3.Value4.Value5 | +--------------------------------------+ 1 row in set (0.00 sec)
Here is the query to get everything before the last occurrence of a character in MySQL −
mysql> update DemoTable -> set Words=REVERSE(SUBSTRING(REVERSE(Words), INSTR(REVERSE(Words),'.'))); Query OK, 1 row affected (0.13 sec) Rows matched: 1 Changed: 1 Warnings: 0
Let us check the table records once again −
mysql> select *from DemoTable;
Output
This will produce the following output −
+--------------------------------+ | Words | +--------------------------------+ | Value1. Value2 .Value3.Value4. | +--------------------------------+ 1 row in set (0.00 sec)
Updated on: 30-Jun-2020
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