Oracle sql updating multiple rows Free naked 1 on 1 chats mobile

24 May

In this article, we are going to look at four scenarios for Oracle cross table update. Category_ID) where exists ( select * from Categories b where b. These columns uniquely identify a record in a table.

Suppose we have two tables Categories and Categories_Test. The common column in the two tables is CATEGORY_ID. Please note that query below is used for illustration purpose because Category_ID alone is primary key.

Hi I'm hoping one of you kind folk can help with this.

I want to UPDATE a field of table with the results of another query, (sub query), but my sub quesry contains a Group By and so returns multipel rows.

When trying to update multiple rows though I believe I'm getting stuck on having to have 60,000 unique key identifiers.

This was what I used to update 1 of the records, I'm using Oracle SQL: Cloyd, the description is indeed confusing. Please, shall you consider this worth, comment out and I'll keep editing the answer until we get 'there'.

I would like to update multiple rows with different values for all different records, but don't have any idea how to do that, i am using below sql to update for single record but i have 200 plus records to update MERGE INTO employee e USING ( SELECT 1 as d_id, 'cd234' as staff_no FROM Dual UNION ALL SELECT 2 as d_id, 'ef345' as staff_no FROM Dual UNION ALL SELECT 3 as d_id, 'fg456' as staff_no FROM Dual UNION ALL ...

Since you can't list more than one table in the Oracle UPDATE statement, you can use the Oracle EXISTS clause.

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The Oracle UPDATE statement is used to update existing records in a table in an Oracle database.

If you omit the WHERE clause, all records in the table will be updated!

The WHERE clause specifies which record(s) that should be updated.