Thursday, 19 January 2017

Table Variables With Using Primary Keys and Indexes


Declaring a Table Variable with a Primary Key


DECLARE @SQLFORMMAST TABLE
(       
           FORMID INT NOT NULL,        
           FORMNAME VARCHAR(100),        
           DESCRIPTION NVARCHAR(100),    
           PRIMARY KEY (FORMID)
)



Declaring a Table Variable with a Composite Primary Key



DECLARE @SQLFORMMAST TABLE

(       
           FORMID INT NOT NULL,        
           FROMNAME VARCHAR(100),        
           DESCRIPTION NVARCHAR(100)               
  PRIMARY KEY (FORMID)
)

Declaring a Table Variable with a Composite Unique Index


DECLARE @SQLFORMMAST TABLE
(       
           FORMID INT PRIMARY KEY,        
           FORMNAME VARCHAR(100),        
           DESCRIPTION NVARCHAR(100)               
  UNIQUE CLUSTERED (FORMID) 
)

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