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Is there way to convert user defined type to JSON?

AskTom - Hot Questions - Fri, 10/12/2018 - 00:00
Is there way to convert user defined types/collections to JSON (the same way as it's possible to convert them to XML via XMLTYPE)?

Is the Oracle regular expression supporting this character extraction?

AskTom - Hot Questions - Fri, 10/05/2018 - 00:00
Hi Oracle SQL experts, I am using Oracle regular expression to deal with some characters. My db is 12c. I have a string every line like this input like this 1234adhefd#123 345bheufs15# ... output will be from the first alpha lette...

Migrating Oracle 10g on Solaris Sparc to Linux RHEL 5 VM

AskTom - Hot Questions - Wed, 09/19/2018 - 00:00
Hi, if i will rate my oracle expertise i would give it 3/10. i just started learning oracle, solaris and linux 2months ago and was given this task to migrate. yes our oracle version is quite old and might not be supported anymore. Both platforms ...

ERROR WITH IMPORT OPERATION IN DATABASE 11G RELEASE 1 AND DEVELOPER 10G

AskTom - Hot Questions - Tue, 09/18/2018 - 00:00
Hi Tom, I installed Oracle Database 11G in the folder (E:\DB11)and successfully imported a user to it. But when you install the developer 10G IN FOLDER(E:\DEV10). and TRY TO DO a user import into the database ORACLE 11G, i am receiving the follo...

Parse string then flatten into columns

AskTom - Hot Questions - Thu, 09/13/2018 - 00:00
Hi, LiveSQL link not accepted by the form: https://livesql.oracle.com/apex/livesql/s/g88hb5van1r4ctc65yp4lq9gb I have this situation (see link): <b>ID String</b> Id1 Thing1: Sub1, <br>Thing2: Sub7 ,Sub8 , Sub9 <br>Thing3: Sub12 Id1 Thing...

Database link queries

AskTom - Hot Questions - Tue, 09/11/2018 - 00:00
create or replace procedure P_POP_ILC (P_POL_NO VARCHAR2 DEFAULT NULL) is cursor c1 is select * from rsds_locn_exposure@dmn_rsk_150 where RLE_ULM_NO = NVL(P_POL_NO , RLE_ULM_NO); begin DELETE FROM IDS_LOCN_CLM@dmn_rsk_150; comm...

How to use partial indexes for PK/UK keys

AskTom - Hot Questions - Fri, 09/07/2018 - 00:00
LiveSQL link: not working post link into LiveSQL link, but link works https://livesql.oracle.com/apex/livesql/s/g78ij8jxinq4409pp8dbz3owo Hello all, we have a BI solution (Oracle 12c + ODI11). We have a lot of partitioned tables (daily and mont...

sql performance

AskTom - Hot Questions - Tue, 09/04/2018 - 00:00
Hi Tom,I have met a SQL that with the latest statistics and the execution plan is in the wrong estimate-rows ,that's to say,it's a large difference between the estimate and the actual,the sql statement and execution is below: <code>select t1.card_no...

Storage XMLs in Oracle 12cR2 database

AskTom - Hot Questions - Fri, 08/31/2018 - 00:00
Hello! I created a database in order to store XMLs. I'm going to storage a large amount of data. I was told that Oracle 12cR2 allows to storage XMLs and handle them very good. I created a table with a xmltype column. <code>CREATE TABLE test...

Want to use single select statement instead of various union all's for fetching previous quarter data

AskTom - Hot Questions - Fri, 08/31/2018 - 00:00
I have 5 select statements using union all(showing a few in here) want to use a single statement to fetch the revenue from a table . So based on the condition that AND period_id>=1009 AND Opp_Created_Date_Period_Id<=1009(for every previous quart...

TABLE function and where clause parameters retrieving

AskTom - Hot Questions - Fri, 08/31/2018 - 00:00
Hi there, My goal is to return fieldX or fieldY depending on the where clause (which I don't have any control on since it's generated by a third party software). The TABLE() function is very close to what I want to achieve : select * from T...

Issue with Trigger creation

AskTom - Hot Questions - Wed, 08/29/2018 - 00:00
I am having issues with Trigger. Trigger creation is successful but Once user try to test it, It is failing. Before trigger creation, tester is able to add new email to email_t table. But Once I place trigger, they are getting this : <code> ...

Design question around automatic data change notifications

AskTom - Hot Questions - Wed, 08/08/2018 - 00:00
Hello Oracle experts. Thank you in advance for going through my question. In our organisation, we are planning to implement a solution to automatically push the data that is changed in our databases to consumers. They are not a high traffic system...

How to grant v_$Session to a normal user, If we do not have access to sys user

AskTom - Hot Questions - Wed, 08/01/2018 - 00:00
How to grant v_$Session to a normal user, in a normal user we are using in a stored procedure. And we dont have access to sys user. By using select any dictionary privilege we can access but they do not want grant select any dictionary privilege to a...

returning top 10 records based on previous records counts

AskTom - Hot Questions - Sat, 07/28/2018 - 00:00
Hi, I have an ordered table of products and customers as follows: <code>rn product customer 1 859274 A 2 859267 A 3 859250 A 4 863592 B 5 862250 B 6 862700 B 7 862694 B 8 862120 B 9 863592 C 10 862250 C 11 862120 D 12 86...

Improve INSERT speed for loading volume sample data

AskTom - Hot Questions - Fri, 07/27/2018 - 00:00
Hi Team At the time of writing this, on LiveSQL I get "500 Internal Server Error", so will just paste the re-producible code here. I'm building sample application data for testing using PL/SQL. For loading 10M data in USERS_MAPPING table, cur...

Need to create dynamic columns in the report

AskTom - Hot Questions - Thu, 07/26/2018 - 00:00
Hi Tom, I am new to SQL and PLSQL, I have a requirement to create a report, which includes dynamic column for month based on number of months from Program duration. I actually tried to create scripts in LiveSQL, but right now it is not accessib...

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