sql server add unique constraint
-- Add a Unique constraint and deifine the constraint name
ALTER TABLE TableName
ADD CONSTRAINT TableName_ColumnName_Unique UNIQUE (ColumnName)sql server add unique constraint
-- Add a Unique constraint and deifine the constraint name
ALTER TABLE TableName
ADD CONSTRAINT TableName_ColumnName_Unique UNIQUE (ColumnName)unique constraint mssql
USE AdventureWorks2012;
GO
CREATE TABLE Production.TransactionHistoryArchive4
(
TransactionID int NOT NULL,
CONSTRAINT AK_TransactionID UNIQUE(TransactionID)
);
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