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    Chat Zona es la comunidad de chat gratis que mas ha crecido en los ultimos tiempos. He wants to know some specifics on why he is investigating Briggs.

    Cursor for updating in oracle

    If this rollback didn't cause the error, inconsistent results would abound.

    The solution to your coding dilemma is to open the cursor before the savepoint, as in the following: declare 2 cursor c is select * from test; 3 l_rec test%rowtype; 4 begin 5 update test2 set b = 22; 6 open c; 7 savepoint my_savepoint; 8 loop 9 fetch c into l_rec; 10 exit when c%notfound; 11 rollback to 12 savepoint my_savepoint; 13 end loop; 14 end; 15 / PL/SQL procedure successfully completed. The result set pointed to by cursor C is consistent with respect to a point in time prior to the savepoint, so rolling back to the savepoint will not affect that cursor at all.

    PL/SQL stands for Procedural Language extensions to the Structured Query Language (SQL).

    SQL is a powerful language for both querying and updating data in relational databases.

    If this is not the case, you need to follow the basic SQL tutorial to have a good start.

    This section is targeted as a good starting point for those who are new to PL/SQL.

    I include it here because it allows us to compare the cost of context-switches to the cost of updates.

    Getting to know more information about PL/SQL language. I spend an inordinate proportion of design time of an ETL system worrying about the relative proportion of rows inserted vs updated.I want to test on a level playing field and remove special factors that unfairly favour one method, so there are some rules: TEST (Update Source) - 100K rows TEST (Update target) - 10M rows Name Type Name Type ------------------------------ ------------ ------------------------------ ------------ PK NUMBER PK NUMBER FK NUMBER FK NUMBER FILL VARCHAR2(40) FILL VARCHAR2(40) Not many people code this way, but there are some Pro*C programmers out there who are used to Explicit Cursor Loops (OPEN, FETCH and CLOSE commands) and translate these techniques directly to PL/SQL.If you are looking for a complete PL/SQL tutorial, you are at the right place.This website provides you with a comprehensive PL/SQL tutorial that helps you learn PL/SQL quickly and easily with a lot of fun.

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