oraclecursorupdate

Oracle has provided us with the WHERE CURRENT OF clause for both DELETE and UPDATE statements inside a cursor's range to make changes to the last fetched row(s) ...

2017年5月19日 — I want to query some rows with the intention of updating them shortly afterwards. Hence I want to lock them to ensure no-one can alter them ...

The SELECT FOR UPDATE statement allows you to lock the records in the cursor result set. You are not required to make changes to the records in order to use ...

2014年6月6日 — 只要在CURSOR 最後面加上FOR UPDATE 就可以了，很簡單。 然後FOR LOOP 裡面的寫法也很簡單，如下：.

First, declare an updatable cursor that updates credits of the customers whose credits are greater than zero. Next, loop over the rows in the cursors.

2016年3月1日 — According to the Oracle 11G PL/SQL documentation here: When SELECT FOR UPDATE queries multiple tables, it locks only rows whose columns ...

2014年3月16日 — Here's an example to get you going: DECLARE l_race_rec race%rowtype; CURSOR Query1 IS SELECT * FROM RACE WHERE Race_Time = '22-SEP-14 ...

2021年9月12日 — 而這一個LOOP就是透過cursor將每一row資料FETCH上來，在每一次循環過程中，依據顧客資料，逐筆進行更新(update)，並計算預算。 最終我們可以得到結果

2024年1月22日 — The Cursor with FOR UPDATE keyword is declared in the declaration section. It is opened and fetched in the execution section. The Fetch ...

2019年1月17日 — Hello forum. I have a pl/sql cursor on a table. As I loop through each record of the cursor, I need to update some columns in that record.