Oracle SQL Developer is a free tool for SQL & PL/SQL development and reporting similar to Quest's Toad or Allround Automations' PL/SQL Developer.

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3
votes
2answers
4k views

Why does the same query run faster the second time I run it?

I noticed when running a SQL query it is faster the second time than the first. So my question is, in Oracle SQL Developer where can you see the statistics that explain this behaviour?
12
votes
3answers
16k views

Script out Oracle DDL in an automated fashion

Oracle SQL Developer is able to export DDL through Tools -> Database Export... This works very well, but requires manual intervention. I know of DBMS_METADATA.get_ddl(), but have found that the ...
6
votes
2answers
202 views

Precision of NVARCHAR2 column is 1.5 times lower than displayed by desc command

I wanted to update precision of an nvarchar2 column and came across an interesting case. I have tried to replicate it below: create table test_table1 (col1 nvarchar2(100)); table TEST_TABLE1 ...
4
votes
3answers
2k views

TNS-12541 Error

I have grid installed in my pc but the problem is LISTENER does not start automatically. I have to start listener manually and then only LISTENER get started. But before starting listener if you check ...
0
votes
0answers
193 views

How do I open Data Pump Import Wizard in SQL Developer 4.1?

How do I find and open the Data Pump Import Wizard in SQL Developer 4.1? I opened the Help search tool in SQL Developer 4.1 and searched for Data Pump, and found directions that include: 1.) ...
0
votes
3answers
3k views

ORA-00905: missing keyword when trying to create a synonym

I have a problem when I try to create a synonym like this: CREATE SYNONYM B2H.BILLING_USER_ACTIVITY@PACOMNET FOR B2H.BILLING_USER_ACTIVITY@PACOMNET.US.ORACLE.COM; Why does this happen and how can ...