This is MS SQL code
if not exists (select PId from Person
where Name = 'Name1' and Surname = 'Surname1')
INSERT INTO [someDb].[dbo].[Person]
([Name] ,[Surnam开发者_开发问答e])
VALUES
('Name1' ,'Surname1')
can you please help me to write ekvivalent code in for my sql
thanks
Assuming you have a unique index on (name,surname), you can use INSERT IGNORE:
INSERT IGNORE INTO `someDb`.`Person`
(`Name` ,`Surname`)
VALUES
('Name1' ,'Surname1')
In MySQL it's usually done I was usually doing it before I saw the other answer with
INSERT INTO table (fields) VALUES (values) ON DUPLICATE KEY UPDATE ID=ID;
In your case it would require a UNIQUE index on (Name,Surname) columns
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