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How to get substring results from a table with file location recordsi in MySQL?
To fetch sub strings, use the substr() method in MySQL as in the below syntax −
select substr(yourColumnName,startIndex,endIndex) from yourTableName limit anyValue; select substr(yourColumnName,startIndex+endIndex) from yourTableName limit anyValue;
Let us create a table −
mysql> create table demo11 −> ( −> id int NOT NULL AUTO_INCREMENT PRIMARY KEY, −> fileLocation text −> ); Query OK, 0 rows affected (2.60 sec)
Insert some records into the table with the help of insert command −
mysql> insert into demo11(fileLocation) values('E:/users/program/sample.sql');
Query OK, 1 row affected (0.15 sec)
mysql> insert into demo11(fileLocation) values('E:/users/data/db.sql');
Query OK, 1 row affected (0.32 sec)
mysql> insert into demo11(fileLocation) values('C:/users/data/sample2.sql');
Query OK, 1 row affected (0.13 sec)Display records from the table using select statement −
mysql> select *from demo11;
This will produce the following output −
+----+-----------------------------+ | id | fileLocation | +----+-----------------------------+ | 1 | E:/users/program/sample.sql | | 2 | E:/users/data/db.sql | | 3 | C:/users/data/sample2.sql | +----+-----------------------------+ 3 rows in set (0.00 sec)s
Here is the query to get sub string result in multiple lines.
The first part query is as follows −
mysql> select substr(fileLocation,1,15) from demo11 limit 1,2;
This will produce the following output −
+---------------------------+ | substr(fileLocation,1,15) | +---------------------------+ | E:/users/data/d | | C:/users/data/s | +---------------------------+ 2 rows in set (0.00 sec)
The second part is as follows −
mysql> select substr(fileLocation,16) from demo11 limit 1,2;
This will produce the following output −
+-------------------------+ | substr(fileLocation,16) | +-------------------------+ | b.sql | | ample2.sql | +-------------------------+ 2 rows in set (0.00 sec)
Updated on: 19-Nov-2020
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