on duplicate key update sql server

on duplicate key update sql server

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There's no DUPLICATE KEY UPDATE equivalent, but MERGE and WHEN MATCHED might work for you. Inserting, Updating, and Deleting Data by Using MERGE., You are basically looking for an Insert or Update pattern sometimes referred to as an Upsert. I recommend this: Insert or Update pattern for Sql Server - Sam Saffron. For a procedure that will be dealing with single rows, either these transactions would , You are basically looking for an Insert or Update pattern sometimes referred to as an Upsert. I recommend this: Insert or Update pattern for Sql Server - Sam Saffron. For a procedure that will be dealing with single rows, either these transactions would , You will not be able to insert a row that does not exist in a table when merging a table onto itself: I suggest doit the following: DECLARE @id INT = 222, @age int = 33, @sex VARCHAR(10) = 'M' IF EXISTS (SELECT id FROM users WHERE id=@id) BEGIN U, First, your select statement is wrong. SELECT b.column1, SUM (a.column2) AS SumColumn2 FROM tableName1 AS a JOIN tableName2 AS b ON a.column1 = b.column2 GROUP BY b.column2. this should probably be grouped by b.column1 , otherwise you will get an excepti, You will not be able to insert a row that does not exist in a table when merging a table onto itself: I suggest doit the following: DECLARE @id INT = 222, @age int = 33, @sex VARCHAR(10) = 'M' IF EXISTS (SELECT id FROM users WHERE id=@id) BEGIN U, don't forget about transactions. Performance is good, but simple (IF EXISTS..) approach is very dangerous. When multiple threads will try to perform Insert-or-update you can easily get primary key violation. Solutions provided by @Beau Crawford &,Hi,. I am migrating from MySQL to SQL Express. In MySQL, I import data from Oracle using the "INSERT INTO .... ON DUPLICATE KEY UPDATE". With the "ON DUPLICATE KEY UPDATE", when there is a duplicate key in MySQL exists, the respective

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MySQL 是一個開源的 RDBMS（關係數據庫管理系統），它支持用 C，C ++，Java，Perl 和 PHP 等各種編程語言編寫的請求。由於其高速度和靈活性，MySQL 已成為主要用於開發各種形狀和大小的 Web 應用程序的最流行的數據庫系統之一。自 1995 年上市以來，這種非常受歡迎的開源數據庫管理系統已經應用於當今幾乎所有互聯網用戶的無數項目中。今天一些最受歡迎的 MySQL 用戶是 ... MySQL 軟體介紹 on duplicate key update sql server 相關參考資料 Does SQL Server Offer Anything Like MySQL's ON DUPLICATE KEY ... There's no DUPLICATE KEY UPDATE equivalent, but MERGE and WHEN MATCHED might work for you. Inserting, Updating, and Deleting Data by Using MERGE. https://stackoverflow.com Equivalent of MySQL ON DUPLICATE KEY UPDATE in Sql Server - Stack ... You are basically looking for an Insert or Update pattern sometimes referred to as an Upsert. I recommend this: Insert or Update pattern for Sql Server - Sam Saffron. For a procedure that will be dea... https://stackoverflow.com Equivalent of MySQL ON DUPLICATE KEY UPDATE in Sql Server ... You are basically looking for an Insert or Update pattern sometimes referred to as an Upsert. I recommend this: Insert or Update pattern for Sql Server - Sam Saffron. For a procedure that will be dea... https://stackoverflow.com sql server - MS SQL equivalent of ON DUPLICATE KEY UPDATE UPSERT ... You will not be able to insert a row that does not exist in a table when merging a table onto itself: I suggest doit the following: DECLARE @id INT = 222, @age int = 33, @sex VARCHAR(10) = 'M&#39... https://stackoverflow.com sql server - SQL query for insert into with update on duplicate ... First, your select statement is wrong. SELECT b.column1, SUM (a.column2) AS SumColumn2 FROM tableName1 AS a JOIN tableName2 AS b ON a.column1 = b.column2 GROUP BY b.column2. this should probably be g... https://stackoverflow.com sql server - MS SQL equivalent of ON DUPLICATE KEY UPDATE ... You will not be able to insert a row that does not exist in a table when merging a table onto itself: I suggest doit the following: DECLARE @id INT = 222, @age int = 33, @sex VARCHAR(10) = 'M&#39... https://stackoverflow.com Solutions for INSERT OR UPDATE on SQL Server - Stack Overflow don't forget about transactions. Performance is good, but simple (IF EXISTS..) approach is very dangerous. When multiple threads will try to perform Insert-or-update you can easily get primary ke... https://stackoverflow.com "ON DUPLICATE KEY UPDATE"? - MSDN - Microsoft Hi,. I am migrating from MySQL to SQL Express. In MySQL, I import data from Oracle using the "INSERT INTO .... ON DUPLICATE KEY UPDATE". With the "ON DUPLICATE KEY UPDATE", when th... https://social.msdn.microsoft.