How Do I Insert New Record Using WHEN Not Exits In Sql Server 2012

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Hello everyone,

I am trying to insert new records from table (UserMgmt) to another table (UserSignInHistory), the fields in these two tables are same. i want each record to be inserted once per day. This is my code:

SQL

INSERT INTO UserSignInHistory 
		SELECT [Staffid],[Username],[Surname],[FirstName],[Branch],[UserRoles],[DateCreated],[SignInDate],[IsActive],GETDATE()
		FROM [UserMgmt] um
		WHERE
        NOT EXISTS (SELECT * FROM UserSignInHistory ss
		
		WHERE ((um.SignInDate <> '2015-05-05' OR um.SignInDate IS NULL) AND um.UserRoles = 'RCO'))

but i am having this error: An explicit value for the identity column in table 'UserSignInHistory' can only be specified when a column list is used and IDENTITY_INSERT is ON.

i have gone through the code, i couldn't fix this error, please can anyone assist?

Posted 5-May-15 20:54pm

Uwakpeter

Updated 5-May-15 22:04pm

v3

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Er. Ajay Chauhan 6-May-15 3:11am

use 1 more closing ')' after last line..

Uwakpeter 6-May-15 3:33am

yes, i have done that, having this error message now: An explicit value for the identity column in table 'UserSignInHistory' can only be specified when a column list is used and IDENTITY_INSERT is ON.

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Gideon van Dyk · Answer 1 · 2015-05-06T17:55:00

The error message actually tells you what's wrong. You are forcing a value into an identity field that usually generates it's own value as most primary key fields do.

You will need to check the table's structure to identify the "identity field" and then arrange you SQL as this:

SQL

INSERT INTO UserSignInHistory ([Username],/*LIST OF FIELDS EXCLUDING IDENTITY FIELD*/)
		SELECT [Username],/*LIST OF FIELDS EXCLUDING IDENTITY FIELD*/
		FROM [UserMgmt] um
		WHERE
        NOT EXISTS (SELECT * FROM UserSignInHistory ss
		
		WHERE ((um.SignInDate <> '2015-05-05' OR um.SignInDate IS NULL) AND um.UserRoles = 'RCO'))