How do I remove a particular substring from a string in SQL Server?

Here we will see SQL statements to remove part of the string.

Table of Contents

Method 1: Using SUBSTRING() and LEN() function.
Method 2 : Using REPLACE() function.
Method 3: Using TRIM() function.

How can I remove part of a string in PHP?

The substr() and strpos() function is used to remove portion of string after certain character. strpos() function: This function is used to find the first occurrence position of a string inside another string. Function returns an integer value of position of first occurrence of string.

How do I select a specific part of a string in SQL?

SQL Server SUBSTRING() Function

Extract 3 characters from a string, starting in position 1: SELECT SUBSTRING(‘SQL Tutorial’, 1, 3) AS ExtractString;
Extract 5 characters from the “CustomerName” column, starting in position 1:
Extract 100 characters from a string, starting in position 1:

How do I remove the first 3 characters from a string in SQL?

Remove first and last character from a string in SQL Server

Using the SQL Left and Right Functions. Declare @name as varchar(30)=’Rohatash’ Declare @n varchar(40) =left(@name, len(@name)-1) Select right(@n, len(@n)-1)
Using the Substring and Len Functions. Declare @string varchar(50) SET @string=’rohatash’

How do you truncate a string in SQL?

SQL Server TRIM() Function The TRIM() function removes the space character OR other specified characters from the start or end of a string. By default, the TRIM() function removes leading and trailing spaces from a string. Note: Also look at the LTRIM() and RTRIM() functions.

How can I remove last three characters from a string in SQL?

Syntax: SELECT SUBSTRING(column_name,1,length(column_name)-N) FROM table_name; Example: Delete the last 2 characters from the FIRSTNAME column from the geeksforgeeks table.

How do I remove all characters before a specific character in PHP?

You can use strstr to do this. Show activity on this post. The explode is in fact a better answer, as the question was about removing the text before the string.

How to escape bad characters from a string in PHP?

You could look into the PDO Library. You can use prepared statements with PDO, which will automatically escape any bad characters in your strings if you do the prepared statements correctly. This is for PHP 5 only I think. Show activity on this post.

Why does MySQL_real_escape_string have the word CLEAN in it’s name?

it doesn’t have word “clean” in it’s name because mysql_real_escape_string doesn’t “clean” anything. it have words “format” and “string” in it’s name because this function have to be used to format SQL strings, and nothing else. it does add quotes because string formatting require quotes.

How to remove characters from the beginning and end of a string?

The TRIM function is used to remove characters from the beginning and end of a string. Here’s an example: The TRIM function takes 3 arguments. First, you have to specify whether you want to remove characters from the beginning (‘leading’), the end (‘trailing’), or both (‘both’, as used above).

How to make sure a string is safe for database use escaping?

To make sure a string is safe for database’s use escaping such as mysql_real_escape_string Show activity on this post. About DataBase, check PDO placeholders.