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-- (Comment) (Transact-SQL)
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[ ] (Wildcard - Character(s) to Match) (Transact-SQL)
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@@IDENTITY (Transact-SQL)
@@IDLE (Transact-SQL)
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AsymKey_ID (Transact-SQL)
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CREATE VIEW (Transact-SQL)
CREATE XML SCHEMA COLLECTION (Transact-SQL)
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DATENAME (Transact-SQL)
DATEPART (Transact-SQL)
Date and Time (Transact-SQL)
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DB_ID (Transact-SQL)
DB_NAME (Transact-SQL)
DBCC (Transact-SQL)
DEALLOCATE (Transact-SQL)
decimal and numeric (Transact-SQL)
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DECLARE CURSOR (Transact-SQL)
DecryptByAsymKey (Transact-SQL)
DecryptByCert (Transact-SQL)
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DELETE (Transact-SQL)
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DISABLE TRIGGER (Transact-SQL)
DROP AGGREGATE (Transact-SQL)
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DROP ASYMMETRIC KEY (Transact-SQL)
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DROP ENDPOINT (Transact-SQL)
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FILEPROPERTY (Transact-SQL)
float and real (Transact-SQL)
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HashBytes (Transact-SQL)

SQL Server 2005

Returns the MD2, MD4, MD5, SHA, or SHA1 hash of its input.

Topic link icon Transact-SQL Syntax Conventions

Copy 

HashBytes ( '<algorithm>', { @input | 'input' } )

<algorithm>::= MD2 | MD4 | MD5 | SHA | SHA1
'<algorithm>'

Identifies the hashing algorithm to be used to hash the input. This is a required argument with no default. The single quotation marks are required.

@input

Specifies a variable containing the data to be hashed. @input is varchar, nvarchar, or varbinary.

' input '

Specifies a string to be hashed.

varbinary (maximum 8000 bytes)

The following example returns the SHA1 hash of the nvarchar data stored in variable @HashThis.

Copy 
DECLARE @HashThis nvarchar(max);
SELECT @HashThis = CONVERT(nvarchar,'dslfdkjLK85kldhnv$n000#knf');
SELECT HashBytes('SHA1', @HashThis);
GO
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