Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

HOW TO SELECT ROWS WHERE THE TIMESTAMP COLUMN = CURRENT DATE - 1

Posted on 2008-11-03
3
1,084 Views
Last Modified: 2012-08-13
I need to perform a select and manipulate the where clause like so:

SELECT * FROM MY_TABLE WHERE MY_TIMESTAMP = CURRENT_DATE - 1

the date being at the level of a DAY (not hours or whatever)

anyone know how this is done in Oracle?
0
Comment
Question by:const71
3 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 22868041
this will do:
SELECT * FROM MY_TABLE WHERE MY_TIMESTAMP >= TRUNC(SYSDATE) - 1 AND MY_TIMESTAMP < TRUNC(SYSDATE) 

Open in new window

0
 
LVL 35

Expert Comment

by:Mark Geerlings
ID: 22868355
Or this:

SELECT * FROM MY_TABLE WHERE MY_TIMESTAMP between trunc(SYSDATE) - 2 and trunc(SYSDATE) -1;

This can also work, but performance could be terrible:

SELECT * FROM MY_TABLE WHERE trunc(MY_TIMESTAMP) = trunc(SYSDATE - 1);

If the table is large, and if it is indexed on this column, this query will *NOT* be able to use the index, so my first suggestion, or angellll's suggestion will allow index(es) to be used.
0
 

Author Closing Comment

by:const71
ID: 31512737
Absolutely awesome..Thanks!!
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
selective queries 7 37
Oracle Insert not working 10 32
Checking for column width 8 28
oracle sqlplus query delimiter 8 19
Working with Network Access Control Lists in Oracle 11g (part 1) Part 2: http://www.e-e.com/A_9074.html So, you upgraded to a shiny new 11g database and all of a sudden every program that used UTL_MAIL, UTL_SMTP, UTL_TCP, UTL_HTTP or any oth…
When it comes to protecting Oracle Database servers and systems, there are a ton of myths out there. Here are the most common.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
This video shows information on the Oracle Data Dictionary, starting with the Oracle documentation, explaining the different types of Data Dictionary views available by group and permissions as well as giving examples on how to retrieve data from th…

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question