mysql primary key duplicate
Are you using the whole "type" field in your index? Or only the first character? Because the key MySQL is complaining about is. M-2012-08-22 ..., You are trying to insert same value. PK should be unique. SET ID as autoincrement. CREATE TABLE `table_code` ( `id` int(11) NOT NULL ..., No, it is not possible in SQL Server to insert records that have duplicate values in the Primary Key.,If you specify an ON DUPLICATE KEY UPDATE clause and a row to be inserted would cause a duplicate value in a UNIQUE index or PRIMARY KEY , an ... , The primary key is on the first two columns (both of them), so the row I am trying to insert HAS a unique primary key, doesn't it? I tried to repair the ...,Use a surrogate primary key for the table and define a separate index for the object/type pair: Create table Information ( InformationId int not null auto_increment, ... , 還好MYSQL提供一個INSERT ... ON DUPLICATE KEY UPDATE 的寫法，可以一行就解決這樣的難題。 必要條件. 1. 資料表中必須有PRIMARY或 ..., ,If you use a “simple” INSERT, you'll get a PRIMARY KEY constraint violation error, ... Records in the INSERT statement without duplicate keys will be INSERTed. , 摘要:[MySQL] ON DUPLICATE KEY用法. 在實務上我們為了保持資料表的內容不會重複. 通常會設定一個或數個欄位作為Primary key. 而現在有個 ...
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 mysql primary key duplicate 相關參考資料
Duplicate entry for key 'PRIMARY' in mysql - Stack Overflow
Are you using the whole "type" field in your index? Or only the first character? Because the key MySQL is complaining about is. M-2012-08-22 ... https://stackoverflow.com Duplicate entry for primary key on MySQL - Stack Overflow
You are trying to insert same value. PK should be unique. SET ID as autoincrement. CREATE TABLE `table_code` ( `id` int(11) NOT NULL ... https://stackoverflow.com How to insert a duplicate value in primary key column? - Stack ...
No, it is not possible in SQL Server to insert records that have duplicate values in the Primary Key. https://stackoverflow.com INSERT on duplicate key UPDATE - MySQL :: Developer Zone
If you specify an ON DUPLICATE KEY UPDATE clause and a row to be inserted would cause a duplicate value in a UNIQUE index or PRIMARY KEY , an ... https://dev.mysql.com MySQL duplicate entry error even though there is no duplicate ...
The primary key is on the first two columns (both of them), so the row I am trying to insert HAS a unique primary key, doesn't it? I tried to repair the ... https://stackoverflow.com MySQL duplicate primary key - Stack Overflow
Use a surrogate primary key for the table and define a separate index for the object/type pair: Create table Information ( InformationId int not null auto_increment, ... https://stackoverflow.com Mysql INSERT ... ON DUPLICATE KEY UPDATE 寫法@新精讚
還好MYSQL提供一個INSERT ... ON DUPLICATE KEY UPDATE 的寫法，可以一行就解決這樣的難題。 必要條件. 1. 資料表中必須有PRIMARY或 ... http://n.sfs.tw MySQL INSERT ON DUPLICATE KEY UPDATE
https://www.mysqltutorial.org What happens if you try to insert a duplicate primary key in MySQL ...
If you use a “simple” INSERT, you'll get a PRIMARY KEY constraint violation error, ... Records in the INSERT statement without duplicate keys will be INSERTed. https://www.quora.com [MySQL] ON DUPLICATE KEY用法| CHF's note - 點部落
摘要:[MySQL] ON DUPLICATE KEY用法. 在實務上我們為了保持資料表的內容不會重複. 通常會設定一個或數個欄位作為Primary key. 而現在有個 ... https://dotblogs.com.tw |