22 lines
559 B
Transact-SQL
22 lines
559 B
Transact-SQL
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USE [Database]
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IF OBJECT_ID('[Tables].[trg_insert_product_values]', 'TR') IS NOT NULL
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DROP TRIGGER [Tables].[trg_insert_product_values];
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GO
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CREATE TRIGGER [Tables].[trg_insert_product_values] ON [Tables].[product_values] AFTER INSERT
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AS
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IF EXISTS(
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SELECT *
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FROM (
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SELECT [i].[value], COUNT(*) AS [count]
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FROM [Tables].[product_values] AS [PV]
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JOIN [inserted] AS [i]
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ON [i].[id] = [PV].[product_id]
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) AS [values]
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WHERE [count] > 1
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)
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BEGIN
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ROLLBACK TRANSACTION;
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RETURN;
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END
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GO
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