HTML tutorial
CSS3 tutorial
Bootstrap tutorial
JavaScript tutorial
JQuery tutorial
AngularJS tutorial
React tutorial
NodeJS tutorial
PHP tutorial
Python tutorial
Python3 tutorial
Django tutorial
Linux tutorial
Docker tutorial
Ruby tutorial
Java tutorial
C tutorial
C ++ tutorial
Perl tutorial
JSP tutorial
Lua tutorial
Scala tutorial
Go tutorial
ASP.NET tutorial
C # tutorial
MySQL Functions : Extract a substring from a string (start at position 5, extract 3 characters)
The SUBSTR() function extracts a substring from a string (starting at any position).
SUBSTR(string, start, length)
SUBSTR(string FROM start FOR length)
Parameter | Description |
---|---|
string | Required. The string to extract from |
start | Required. The start position. Can be both a positive or negative number. If it is a positive number, this function extracts from the beginning of the string. If it is a negative number, this function extracts from the end of the string |
length | Optional. The number of characters to extract. If omitted, the whole string will be returned (from the start position) |
Works in: | From MySQL 4.0 |
---|
Extract a substring from the text in a column (start at position 2, extract 5 characters):
SELECT SUBSTR(CustomerName,
2, 5) AS ExtractString
FROM Customers;
Extract a substring from a string (start from the end, at position -5, extract 5 characters):
SELECT SUBSTR("SQL Tutorial", -5, 5) AS ExtractString;