PL/SQL cursor question (possible to pass in the table name?)

I want to pass the name of a table to a cursor and select from that,
Is this possible in PL/SQL?
CURSOR get_rows(table_name IN VARCHAR2) IS
SELECT * FROM table_name;
The actual sql statement that will be used is more complex.
I have 18 tables for which the same query would work varrying only in the name of the table.
I get an error when I try to do the above.

>
I am not quite sure how you can derive anything from the design given the example that has all other details stripped out
>
What Justin said is pretty clear
>
If you are really doing a SELECT * and you have 18 different tables, it seems unlikely that all tables would always have exactly the same set of columns. If they do, that is almost certainly an indication that the data model is incorrect.
>
A data model that includes 18 tables with the same set of columns has something wrong with it. You explained that by clarifying that it is only TWO columns in each of the 18 tables that is the same. Perhaps the tables have one-to-many relationships and the two columns are the key columns. That is different.
>
The 'select *' will actually pull back only two columns, both of which are primary keys (long). I need to select all rows into a data structure that is global that I can iterate through at a later time. So given that I can use a ref cursor and have a dynamic table name, how would I select into a data structure that is of two primary keys and make that global to be used in another method at a later time?
>
Why not use an actual table to store the column data? An index-organized table would be perfect for that use and won't use up valuable user memory.
And by global do you mean the data needs to be accessible by a different session than the one that collected the data?
And what do you mean by 'later'? Tomorrow or next week?
The use case you describe sounds like you are having to update primary key values in tables that have parent-child foreign key constraints. Is that what you are doing? Can you do this offline and defer or disable the constraints, perform an update (rather than insert/delete) and then reenable the constraints?

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How to pass the table name dynamically in xml parsing

Hi All,
I have created one procedure for parsing xml file which is working perfectly.
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Hi,
But it's not working.Don't you think it would help to give the error message?
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Using column value is it possible to find the table name in the database?

Hi all,
using column value is it possible to find the table name in the database?
guys i need the table value
Note:
oracle-9i
for example:
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Thank you,
with regards,
JP.
Edited by: Guest on Feb 27, 2012 5:42 AM

Hi,
As far as I understand what you are asking for I would suggest 4 data dictionaries that will help you to know the table name from the column names
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To know about various data dictionaries avalible in Oracle please query select * from cat;
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1 ResumoRetencao 0 
2 Historico 0 
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([email protected])
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>
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{noformat}
http://www.dba-oracle.com/plsql/t_plsql_dynamic.htm
{noformat}
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/jeff

PL/SQL cursor question (possible to pass in the table name?)

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