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primary key uniqueインデックスが複数行に一致する場合、MySQL は1行のみ更新されます。 ON DUPLICATE KEY UPDATE は MySQL の拡張であり、他のデータベースでは利用できません。

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You can keep your primary key as it is and add "unique" identifier to the pname field (second option on the right side ) and it should work. Essentially, the "ON DUPLICATE KEY UPDATE" will update the row if you're trying to insert a row with a duplicate primary key value or with duplicate value on any column that has the "unique" identifier set.

However, if you specify the ON DUPLICATE KEY UPDATE option in the INSERT statement, MySQL will update the existing row with the new values instead. The ON DUPLICATE KEY UPDATE clause can contain multiple column assignments, separated by commas. In assignment value expressions in the ON DUPLICATE KEY UPDATE clause, you can use the VALUES (col_name) function to refer to column values from the INSERT portion of the INSERT ON DUPLICATE KEY UPDATE statement. The ON DUPLICATE KEY UPDATE clause can contain multiple column assignments, separated by commas. In assignment value expressions in the ON DUPLICATE KEY UPDATE clause, you can use the VALUES (col_name) function to refer to column values from the INSERT portion of the INSERT ON DUPLICATE KEY UPDATE statement. It means that all code after ON DUPLICATE KEY UPDATE won't be executed.

On duplicate key update

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But they can not return values. I don't know is possible or not. Hope you guys can help me out. I would recommend using INSERTON DUPLICATE KEY UPDATE. If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. But the statement won't generate an error. It generates a warning instead.

inserton duplicate key update構文を使うと. レコードがなければinsert、あればupdate; 複数行の一括update; フィールド毎に条件判定して更新; を1度のクエリで行うことができる。集計処理などに便利。 基本

inserton duplicate key update構文を使うと. レコードがなければinsert、あればupdate; 複数行の一括update; フィールド毎に条件判定して更新; を1度のクエリで行うことができる。集計処理などに便利。 基本 ON DUPLICATE KEY UPDATE" insert failure, caused by a duplicate key error, would result in duplicate auto-increment values." [6 Jun 2013 15:44] Laurynas Biveinis The commit message is missing the public bug db number, making it harder to find. ON DUPLICATE KEY UPDATE yang menyiratkan pembaruan yang tidak perlu dengan biaya tertentu, atau ; INSERT IGNORE yang menyiratkan undangan untuk jenis kegagalan lain untuk masuk tanpa pemberitahuan. Apakah saya benar dalam asumsi-asumsi ini?

On duplicate key update

L'instruction ON DUPLICATE KEY UPDATE est une fonctionnalité de MySQL qui permet de mettre à jour des données lorsqu'un enregistrement existe déjà 

Categories. Story. Tags. im getting syntax errors in sql string when adding the ON   Which (non-standard) statement is better faster? REPLACE INTO INSERT INTO ON DUPLICATE KEY UPDATE REPLACE INTO my_table (col_1, col_2 ,  9 Aug 2018 ON DUPLICATE KEY UPDATE … intends the UPDATE to be executed in case the row already exists. So combining the two makes no […] 16 апр 2016 Но затова може да изпозлваме on duplicate key update: INSERT INTO salarypayments(`coach_id`, `month`, `year`, `salaryAmount`,  mySQL: on duplicate key update. March 7, 2018 by Josh Senyak.

On duplicate key update

ON DUPLICATE KEY UPDATE, and the select references the table the insert points to, then any reference to a field in the UDPATE results in ERROR 1052 (23000): Column 'xxx' in field list is ambiguous.
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On duplicate key do not allow us to use where clause, so there are two alternative to achieve the same.

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On duplicate key update metabolites in urine
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This will INSERT into table_name the specified values, but if the unique key already exists, it will update the other_field_1 to have a new value. Sometimes, when 

For instance in our example when we don't have such values in database, after this query we will have row with article_id = 12 and views_count = 1 (not 2). Batch insert with ON DUPLICATE KEY There is also option to make batch insert to database using ON DUPLICATE KEY UPDATE.