Tagged Questions

0
votes
1answer
42 views

How would I store the result of a select statement so that I can reuse the results to join to different tables?

How would I store the result of a select statement so that I can reuse the results to join to different tables? This will also be inside a cursor. Below is some pseudo code, in this example I have ...
-1
votes
1answer
52 views

populate table header and data in another table column [closed]

I have 2 tables: Departments and Employees, where Department_Id is primary key in the departments table and a foreign key in Employees table. Departments Table: Department_Id Department_Name 10 ...
0
votes
1answer
71 views

What are the criteria for a sql staying in the V$SQLAREA?

I needed to pick up details from a SQL result but 5 minutes after running the SQL it was no longer under v$sql and V$sqlarea. What are the criteria for Oracle to keep the query in those views?
0
votes
1answer
232 views

Massive update to Clob fields oracle 10g

I need to remove a string of characters from 2000+ clobs fields in oracle 10g. How would I do this in PL/SQL? For example, in table t1 there is a clob field called VBase that needs to have the ...
1
vote
1answer
140 views

Find who will change a record in oracle DB

Someone is updating a record in a custom Oracle table, is there a way to find who is updating the record and or at least the table?
4
votes
1answer
685 views

Oracle subquery column aliasing syntax?

I have something like: SELECT a, b INTO v_a, v_b FROM ( SELECT x, y FROM whatever UNION SELECT z, w FROM something ) AS subquery (a, b) Which of course doesn't work in Oracle ...
0
votes
1answer
1k views

Returning Row Count in a Stored Procedure in Oracle

I'm mostly SQL Server person, so forgive me if this is too close to SQL Server, but in a nutshell using Oracle 10 I'm trying to build a procedure something like this: PROCEDURE SP_INFO_EX_S( ...
3
votes
2answers
2k views

Using Same CASE WHEN Conditions For Multiple Query Columns

Is there a "better" way to rewrite a SELECT clause where multiple columns use the same CASE WHEN conditions so that the conditions are only checked once? See the example below. SELECT CASE ...
1
vote
2answers
142 views

Join on clustered tables shows greater cost than non-clustered tables?

I have created a cluster and have two tables emp and sep on the cluster. When I do the simple query... explain plan select * from emp_cluster join dep_cluster using (dno) the cost is 26. I ...
3
votes
2answers
2k views

How do I find an object that doesn't seem to exist in the objects table?

I have an object called cot_ntn_pi_v. I was told this was a synonym. It doesn't appear in the all_synonyms table. It looks like a view or table but I can't find it in the all objects table. I can ...
0
votes
3answers
417 views

Oracle returns different results when executing a sql with bind variable or with a fix value

The following two statements (strongly simplyfied) returning a different result: with a fix value for rownmun: select * from table where rownum <= 12; with bind variable for rownum: select * ...
0
votes
1answer
49 views

Oracle: calling udf that modifies the data. How to do it right?

Say I have a function : create or replace function test_function return integer as PRAGMA AUTONOMOUS_TRANSACTION; t_test integer :=1; begin update test1 set id = id+1 ; // table test1 has, for ...
1
vote
2answers
391 views

Is Using Execute Immediate Bad Practice in Oracle?

So, I've been writing a script which creates a sequence (if it doesn't exist) then copies some data including a value from that sequence before deleting the original source data. As the sequence ...
7
votes
5answers
1k views

Oracle sort varchar2 column with special characters last

How can I sort in Oracle a Varchar2 or NVarchar2 column to be in my own custom defined order. Or are any existing options available that will put letters first, then numbers, then all special ...
1
vote
1answer
234 views

Using a sequence created in the same script in Oracle

SQL Server developer working on Oracle so apologies in advance if I'm fundamentally coming at this incorrectly from an Oracle perspective. I've got a script I've written which: Checks ALL_SEQUENCES ...