Answers for "how to add a primary key to an existing table"

add primary key to existing table sql

alter table Persion add primary key (persionId,Pname,PMID)

Posted by: Guest on February-08-2021

add primary key to table

ALTER TABLE Persons

ADD PRIMARY KEY (ID);

Posted by: Guest on June-07-2021

sql server add primary key to existing table with data

ALTER TABLE Production.TransactionHistoryArchive
   ADD CONSTRAINT PK_TransactionHistoryArchive_TransactionID PRIMARY KEY CLUSTERED (TransactionID);

Posted by: Guest on July-22-2020

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