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How to substring value in a MySQL table column?
To substring a MySQL table column, use the in-built SUBSTR() function from MySQL. The syntax is as follows −
select substr(yourColumnName,AnyValue) as anyVariableName from yourTableName;
To understand the function substr(), let us create a table. The query to create a table is as follows −
mysql> create table SubStringDemo −> ( −> UserId varchar(200) −> ); Query OK, 0 rows affected (0.55 sec)
Now insert some records in the table. The query to insert records is as follows −
mysql> insert into SubStringDemo values('Bob10015');
Query OK, 1 row affected (0.29 sec)
mysql> insert into SubStringDemo values('Smith0015');
Query OK, 1 row affected (0.22 sec)
mysql> insert into SubStringDemo values('Carol20010');
Query OK, 1 row affected (0.14 sec)Now you can display all records from the table with the help of select statement. The query is as follows −
mysql> select *from SubStringDemo;
The following is the output −
+------------+ | UserId | +------------+ | Bob10015 | | Smith0015 | | Carol20010 | +------------+ 3 rows in set (0.00 sec)
The following is the query to substring MySQL table column −
mysql> select substr(UserId,5) as ExtractSubstring from SubStringDemo;
Here is the output that displays the substrings −
+------------------+ | ExtractSubstring | +------------------+ | 0015 | | h0015 | | l20010 | +------------------+ 3 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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