Ensure Oracle row represents a unique timespan

Posted by Dan F. on Stack Overflow See other posts from Stack Overflow or by Dan F.
Published on 2010-05-24T19:48:26Z Indexed on 2010/05/24 20:01 UTC
Read the original article Hit count: 237

Filed under:

Oracle

|

plsql

|

check-constraints

I have to make a process in Oracle/PLSQL. I have to verify that the interval of time between start_date and end_date from a new row that I create must not intersect other start_dates and end_dates from other rows.

Now I need to check each row for that condition and if it doesn't correspond the repetitive instruction should stop and after that to display a message such as "The interval of time given is not correct".

I don't know how to make repetitive instructions in Oracle/PLSQL and I would appreciate if you would help me.

© Stack Overflow or respective owner

Related posts about Oracle

E-Business Suite Technology Sessions at OpenWorld 2012

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Oracle OpenWorld 2012 is almost here! We're looking forward to updating you on our products, strategy, and roadmaps. This year, the E-Business Suite Applications Technology Group (ATG) will participate in 25 speaker sessions, two Meet the Experts round-table discussions, five demoground booths and… >>> More
26 Days: Countdown to Oracle OpenWorld 2012

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Welcome to our countdown to Oracle OpenWorld! Oracle OpenWorld 2012 is just around the corner. In less than 26 days, San Francisco will be invaded by an expected 50,000 people from all over the world. Here on the Oracle WebCenter team, we’ve all been working to help make the experience a great… >>> More
OTN ???? ?????? ???????

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Database ?? Database ??????? Database ?????????? Java WebLogic Server/????????·???? SOA/BPM/????? ???????/???? ID??/?????? ?????EPM/BI EPM/BI ??????? EPM/BI ???? OS/??? ???? ????? MySQL Database ?? ???? ?? ????????? ??? ?? ORACLE MASTER… >>> More
SOA PARTNER COMMUNITY NEWSLETTER JULY 2012

as seen on Oracle Blogs - Search for 'Oracle Blogs'
SOA PARTNER COMMUNITY NEWSLETTER JULY 2012 Dear SOA partner community member To provide our community members the best of our knowledge, we want your feedback on our SOA Partner community. Thus we are organizing SOA Partner Community Survey 2012. We… >>> More
Oracle ADF Coverage at OOW

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Below is the schedule for all ADF related sessions at a glance. Note the Meet and greet session added for Wednesday Octiber 3rd from 4.30 pm to 5:30. Oracle ADF and Fusion Development General Session Mon 1 Oct,… >>> More

Related posts about plsql

Iterating over files in PLSQL

as seen on Stack Overflow - Search for 'Stack Overflow'
Using a PLSQL script, is it possible to iterate over binary files in a folder and insert them as a BLOB in Oracle 10g? Any examples would be appreciated. >>> More
plsql show query

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, I have a small problem using oracle pl sql. I have a sql file with some cursor, etc, and the treatement fail but with no details. I have an idea about the problem (a function with parameters) but I would like to see the parameter for each call, to be able to debug, to see exactly with wich… >>> More
Get 2 recoeds from PLSQL Cursor

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys... my Question is short, I create a cursor to get some values from my table I want to get the current record of cursor (the fetched record) and the next record from the cursor without fetching it, cause I want to make a calculation over the current record and the next record. in traditional… >>> More
Get two records from PLSQL cursor

as seen on Stack Overflow - Search for 'Stack Overflow'
My question is short. I create a cursor to get some values from my table. I want to get the current record of cursor (the fetched record) and the next record from the cursor without fetching it, because I want to make a calculation over the current record and the next record. In traditional programming… >>> More
PLSQL: How to go about it

as seen on Stack Overflow - Search for 'Stack Overflow'
I searched for this topic on SO but I did not found any recommendations and so am asking it as I am new to PLSQL and want to understand it: What is best way to get started with PLSQL ? What are best online resources or books available out there for understand PLSQL which you would recommend ? Do… >>> More