Limit length of longtext field in MySQL SELECT results?

You can use SUBSTRING() from MySQL to limit length of strings. The syntax is as follows

SELECT SUBSTRING(yourColumnName,1,yourIntegerValueToGetTheCharacters) as anyVariableName from yourTableName;

To understand the above syntax, let us create a table. The query to create a table is as follows

mysql> create table limitLengthOfLongTextDemo -> ( -> sentence LONGTEXT -> ); Query OK, 0 rows affected (0.74 sec)

Insert some records in the table using insert command. The query is as follows

mysql> insert into limitLengthOfLongTextDemo values('This is the introduction to MySQL'); Query OK, 1 row affected (0.17 sec) mysql> insert into limitLengthOfLongTextDemo values('PL/SQL is the extension of Structured Query Language'); Query OK, 1 row affected (0.19 sec) mysql> insert into limitLengthOfLongTextDemo values('Java is an Object Oriented Programming Language'); Query OK, 1 row affected (0.20 sec)

Display all records from the table using select statement. The query is as follows

mysql> select *from limitLengthOfLongTextDemo;

The following is the output

+------------------------------------------------------+ | sentence | +------------------------------------------------------+ | This is the introduction to MySQL | | PL/SQL is the extension of Structured Query Language | | Java is an Object Oriented Programming Language | +------------------------------------------------------+ 3 rows in set (0.00 sec)

Here is the query to get the characters of the given value

mysql> select substring(sentence,1,26) as 26Characters from limitLengthOfLongTextDemo;

The following is the output

+----------------------------+ | 26Characters | +----------------------------+ | This is the introduction t | | PL/SQL is the extension of | | Java is an Object Oriented | +----------------------------+ 3 rows in set (0.00 sec)