Cursor for updating in oracle

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Let’s take a closer look at these five cursor FOR loop recommendations. This advice may come as something of a shock to you.For additional information on assigning values to PL/SQL variables, see "Assigning a SQL Query Result to a PL/SQL Variable".Oracle is transaction oriented; that is, Oracle uses transactions to ensure data integrity.It’s important to know when not to use cursor FOR loops.My mentor told me that when querying data I should always use a cursor FOR loop, even for a single row lookup. It’s great to learn from others, and it’s especially wonderful when the lesson you learn is simple and easy to remember.

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My method of using FORALL to update many columns is by splitting a PL table of a string using SUBSTR in fixed places.

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