mysql substring – MySQL SUBSTR() returns the specified number of characters from a particular position of a given string.
mysql substring || SUBSTRING() function in MySQL
MySQL Substring And Substring_Index Functions With MySQL SUBSTRING Example, Without Count, With Count, With Negative Index Values, Index Out of Bounds, MySQL SUBSTRING_INDEX, Searching For A Character, Searching For A String, Searching For A Non-Existing String, Searching For Character Or String In Reverse Order and Applications Of MySQL SUBSTRING Function.
mysql substring Syntax :
SUBSTRING(string, start, length) OR SUBSTRING(string FROM start FOR length)
Example 1
start at position 5, extract 3 characters
SELECT SUBSTRING("PAKAINFO Article", 5, 3) AS final_results;
Example 2
start at position 2, extract 5 characters
SELECT SUBSTRING(WebsiteName, 2, 5) AS final_results FROM Websites;
Example 3
start from the end, at position -5, extract 5 characters
SELECT SUBSTRING("PAKAINFO Article", -5, 5) AS final_results;
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With Count
SELECT SUBSTRING('Free Donwload Tamilrokers Movies', 10, 7) as final_results;
SELECT SUBSTRING('Free Donwload Tamilrokers Movies' FROM 10 FOR 7) as final_results;
With Negative Index Values
SELECT SUBSTRING('Free Donwload Tamilrokers Movies', -12, 7) as final_results;
SELECT SUBSTRING('Free Donwload Tamilrokers Movies' FROM -12 FOR 7) as final_results;
Index Out of Bounds
SELECT SUBSTRING('Free Donwload Tamilrokers Movies', 30, 2) as final_results;
SELECT SUBSTRING('Free Donwload Tamilrokers Movies', 5, 100) as final_results;
SELECT SUBSTRING('Free Donwload Tamilrokers Movies', 5, -20) as final_results;
Searching For A Character
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'T', 1) as final_results;
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'e', 1) as final_results;
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'e', 2) as final_results;
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'e', 2) as final_results;
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 't', 1) as final_results;
Searching For A String
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'Movies', 1) as final_results;
Searching For A Non-Existing String
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'abc', 1) as final_results;
Searching For Character Or String In Reverse Order
SELECT SUBSTRING_INDEX('Free Donwload Tamilrokers Movies', 'T', -1) as final_results;
Applications Of MySQL SUBSTRING Function
Example: Assume that we have an member infromation table consisting of id, name, and location.
Below is the Script to create a table and insert dummy data:
CREATE TABLE members_info (name VARCHAR(100), location VARCHAR(100), age INT);
INSERT INTO members_info values
('Rajiv Gandhi', '102,Ganesh new', 25),
('Virat Kohali','88/3,Gokukl park',35),
('Sachin Tendulkar','190,Tirupati sco',40);
SELECT name, SUBSTRING_INDEX(location,',',1) as scoget, location, age from members_info
I hope you get an idea about mysql substring.
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