Returning a Chunk of an Expression : SUBSTRING « String Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » String Functions » SUBSTRING

12. 22. 2. Returning a Chunk of an Expression


4>

5> DECLARE @BankAccountNumber char(14)

6> SET @BankAccountNumber = '1111-1111-1111'

7> SELECT 'XXXX-' + SUBSTRING(@BankAccountNumber, 6,4) + '-XXXX' Masked_BankAccountNumber

8> GO

Masked_BankAccountNumber

------------------------

XXXX-1111-XXXX



(1 rows affected)

1>

12. 22. SUBSTRING
	12. 22. 1.	SUBSTRING is used to retrieve part of a string from another string. The syntax for the function is as follows:
	12. 22. 2.	Returning a Chunk of an Expression
	12. 22. 3.	Substring with variable
	12. 22. 4.	SUBSTRING(FullName, CHARINDEX(' ', FullName) + 1, LEN(FullName))
	12. 22. 5.	select SUBSTRING('(559) 555-1212', 7, 8)
	12. 22. 6.	Return first name
	12. 22. 7.	Get the last name
	12. 22. 8.	A SELECT statement that uses the LEFT, RIGHT, and SUBSTRING functions

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