sqlite update from another table

相關問題 & 資訊整理

sqlite update from another table

SQLite does not suport joins in an UPDATE statement. You have to look up the new value with correlated subqueries: UPDATE Table1 SET ...,Using the update statement it is not possible because in sqlite joins in an ... See this example: How do I make an UPDATE while joining tables on SQLite? , Like this? update A set A.points = B.sumpoints, A.reward = B.sumreward from A, (select userid, teamid, sum(points) sumpoints, sum(reward) ..., Remove the WHERE condition from your UPDATE statement. WHERE city IN (SELECT city FROM table2 WHERE table2.city = table1.city)., I am assuming that the t2.trans_id is uniq or primary key in table2 . If not then if it return multiple result then the update query will blow up., To update the rows where Parent is not NULL, use a statement like this: UPDATE MyTable SET ... WHERE Parent IS NOT NULL. To look up the ..., The deleted answer was correct about the cause of the error: a relation identifier must be introduced (e.g. with FROM/JOIN) in a query before it ..., SQLite doesn't support JOINs in UPDATE statements. You can reach the same result using sub-query like the following. UPDATE table2 SET ...,UPDATE in sqlite3 does not support a FROM clause, which makes this a little more work than in other RDBMS. If performance is not satisfactory, another option ... ,UPDATE software SET purchprice = (SELECT purchprice FROM softwarecost WHERE id = software.id) where EXISTS (SELECT purchprice FROM softwarecost ...

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sqlite update from another table 相關參考資料
SQL update based on column in other table - Stack Overflow

SQLite does not suport joins in an UPDATE statement. You have to look up the new value with correlated subqueries: UPDATE Table1 SET ...

https://stackoverflow.com

SQLite inner join - update using values from another table - Stack ...

Using the update statement it is not possible because in sqlite joins in an ... See this example: How do I make an UPDATE while joining tables on SQLite?

https://stackoverflow.com

SQLite SQL UPDATE query based on the another table - Stack Overflow

Like this? update A set A.points = B.sumpoints, A.reward = B.sumreward from A, (select userid, teamid, sum(points) sumpoints, sum(reward) ...

https://stackoverflow.com

sqlite, update column from column in another table - Stack Overflow

Remove the WHERE condition from your UPDATE statement. WHERE city IN (SELECT city FROM table2 WHERE table2.city = table1.city).

https://stackoverflow.com

SQLite: Update column with value from another table - Stack Overflow

I am assuming that the t2.trans_id is uniq or primary key in table2 . If not then if it return multiple result then the update query will blow up.

https://stackoverflow.com

Update multiple rows with values from another table and where ...

To update the rows where Parent is not NULL, use a statement like this: UPDATE MyTable SET ... WHERE Parent IS NOT NULL. To look up the ...

https://stackoverflow.com

Update SQLite table based on data in another table - Stack Overflow

The deleted answer was correct about the cause of the error: a relation identifier must be introduced (e.g. with FROM/JOIN) in a query before it ...

https://stackoverflow.com

update table based on another tables value in sqLite - Stack Overflow

SQLite doesn't support JOINs in UPDATE statements. You can reach the same result using sub-query like the following. UPDATE table2 SET ...

https://stackoverflow.com

Update table values from another table with the same user name ...

UPDATE in sqlite3 does not support a FROM clause, which makes this a little more work than in other RDBMS. If performance is not satisfactory, another option ...

https://stackoverflow.com

Update with Join in SQLite - Stack Overflow

UPDATE software SET purchprice = (SELECT purchprice FROM softwarecost WHERE id = software.id) where EXISTS (SELECT purchprice FROM softwarecost ...

https://stackoverflow.com