if not exists insert sql
IF NOT EXISTS (SELECT * FROM EmailsRecebidos
WHERE De = @_DE
AND Assunto = @_ASSUNTO
AND Data = @_DATA)
BEGIN
INSERT INTO EmailsRecebidos (De, Assunto, Data)
VALUES (@_DE, @_ASSUNTO, @_DATA)
ENDsql not exists
-- The SQL NOT EXISTS Operator will act quite opposite to EXISTS Operator.
-- It is used to restrict the number of rows returned by the SELECT Statement.
SELECT column_name
FROM table_name
WHERE NOT EXISTS (Write Subquery to Check);Copyright © 2021 Codeinu
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