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Retrieve first 40 characters of a text field in MySQL?
To get the first 40 characters from a text field, use LEFT() function from MySQL. The syntax is as follows −
SELECT LEFT(yourColumnName,40) as anyVariableName from yourTableName;
To understand the above concept, let us create a table. The query to create a table is as follows −
mysql> create table retrieveFirst40Characters −> ( −> AllWords text −> ); Query OK, 0 rows affected (0.59 sec)
Now you can insert some record in the table with the help of insert command. The query is as follows −
mysql> insert into retrieveFirst40Characters values('This is a query demo to extract a forty characters from a text
'> field,you can use left function to get forty characters');
Query OK, 1 row affected (0.32 sec)Display all records from table using select statement. The query is as follows −
mysql> select *from retrieveFirst40Characters;
The following is the output −
+------------------------------------------------------------------------------------------------------------------------+ | AllWords | +------------------------------------------------------------------------------------------------------------------------+ | This is a demo text displayed in a table for our example | +------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
Here is the query to extract first 40 characters from a text field −
mysql> select left(AllWords,40) as Retrieve40Characters from retrieveFirst40Characters;
The following is the output displaying first 40 characters −
+------------------------------------------+ | Retrieve40Characters | +------------------------------------------+ | This is a demo text displayed in a table | +------------------------------------------+ 1 row in set (0.03 sec)
Updated on: 30-Jul-2019
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