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How to cut part of a string with a MySQL query?
For this, use substring_index() function from MySQL. Let us first create a table −
mysql> create table DemoTable -> ( -> StudentId varchar(100) -> ); Query OK, 0 rows affected (0.60 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('STU-1011');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable values('STU-95968686');
Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+--------------+ | StudentId | +--------------+ | STU-1011 | | STU-95968686 | +--------------+ 2 rows in set (0.00 sec)
Following is the query to cut part of a string in MySQL before hyphen (-) −
mysql> select substring_index(substring(StudentId, instr(StudentId, "-")+1), " ", 1) from DemoTable;
This will produce the following output displaying part of the string before hyphen (-)
+------------------------------------------------------------------------+ | substring_index(substring(StudentId, instr(StudentId, "-")+1), " ", 1) | +------------------------------------------------------------------------+ | 1011 | | 95968686 | +------------------------------------------------------------------------+ 2 rows in set (0.02 sec)
Updated on: 30-Jul-2019
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