SQL & PL/SQL :: Difference Between Sysdate And Current_date
Apr 15, 2010
What is the difference between the values of sysdate and current_date ? On querying the database I got the results as sysdate = the date and time for the database server location and current_date = my local system date
If however, i change my local system date - it still shows the correct date.Myunderstanding was that current_date uses the dbtimezone.But..
We are trying to execute a statement SELECT CURRENT_DATE FROM DUAL on Timesten 11.2.2 . It throws error unknown referenced column error. Command> select current_date from dual; 2211:
Referenced column CURRENT_DATE not foundThe command failed. But the following doc shows the support.
TimesTen PL/SQL Support: Reference Summary CURRENT_DATE function
Returns the current date in the session time zone. YIn TimesTen this returns the current date in UTC (universal time). TimesTen does not support local time zones.
I am not strong in SQL but can write easy SQL for data extraction but seem to not understand how to correctly use sysdate in a where clause.
Case: I have to create an alert that will email my IT dept once a person is terminated in Oracle HR. The alert will only run once a day with all terminations specified in the alert. Setting up the alert is not the issue, but rather the SQL code I want to use.
The alert will run everyday at CoB 17:30. Now, in my query, how do i specify that the results should be only for the current day? The problem however, is that I also retrieve Person Type which should show as Ex-Employee, but this is only shown the day after the actual termination has been done, because the employee is still active on the date of termination.
I have an employee table. I Have to get the data of all employees in such a way that. If today I run the Query,then i have to get the data of all employees working between december 1st of previous year(current year-1 i.e., december 1st 2010.) till today(april 21st). If the query run date is in the month of december(example december 15th) then the query should get the data from december 1st of current year(december 1st 2011) to December 15th. I wrote the if statement some how its not working. I want to make use of this If or Case Statement as the start date of the employee_timestamp. Is this possible here or not.
select * from employee where employee.employee_timestamp > (select to_date(to_char(concat('12-01-', extract(YEAR FROM sysdate)-1)),'MM/DD/YYYY') as Startdate From DUAL) and employee.employee_timestamp < (SELECT SYSDATE FROM DUAL).
I have a table called transaction_dw and I need to select all records that have an account balance that has been below 0 in the past 6 months. initial query I tried was:
select account_balance, timestamp from transaction_dw where account_balance < 0 and timestamp between sysdate and sysdate - 6;
but this is only taking 6 days off the sysdate rather than months, how I can get it to take off 6 months?
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Aug 30 11:45:59 2012
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter user-name: sys as sysdba Enter password:
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select value from v$nls_parameters where parameter= 'NLS_DATE_FORMAT';
VALUE ---------------------------------------------------------------- DD-MON-RR
But while inserting the output of the above query in my table it throws error like this... ORA-01830: date format picture ends before converting entire input string Is there any possibility to achieve this.
I'm working on a project and I can't figure out the procedure I will need to use. I've got a sysdate field in my "Calls" table which generates a call date + time, however I need to insert a severity level of the call after a certain amount of time,
e.g. after 1 hour level turns from level 4 to level 3 and so forth until reaching level 1 after x amount of time. I know I'd need to put in an else if statement within this procedure I just can't work out how to do it with the sysdate field that has also been created.
A bit of info about the table, table name = calls, column 1 = date_time and column 2 is called severity_level
I have one issue My server is in france and it is in french timezone but when I query for sysdate it returns US time.
In '/etc/sysconfig/clock/' Zone= europe/paris UTC= true
echo $TZ variable is returning nothing.
sysdate = us time systimestamp= us time current_timestamp = french time current_date = french time dbtimezone= europe/warsove, sessiontimezone=+2.00( which is also europe timezone offset) tz_offset(dbtimezone)=+2.00, tz_offset(sessiontimezone)= +2.00 i.e europe os timezone= europe/paris.
This command "./emctl config agent getTZ" is also returning timezone as europe/paris
Also in "emd.properties" file "agentTZRegion" parameter is set to europe/paris
Oracle version= 11.2.0
Now I don't understand why this sysdate and systimestamp is returning "US time zone" while everything else is returning french time zone.
i wanted to compare a date in one of my tables to sysdate. I have a table reservation and a field in it is Date Reserved From, i wanted to compare this to sysdate and returned the results
when i open my oracle form on my live application server to display sysdate its does not show me.but when i open this same form on my test application server its shows my current sysdate time.
I saw bunch of other posts but I could find the post that exactly explaining about where the value returned as systimestamp / sysdate comes from or impacted Here is my situation I have an access to this db (let me call db A) and when I access it, I get following result. I don’t have full access to this db so I cannot experiment a lot here.
I’m in PST timezone.I have my db which I have full access as well as its host.I can make result like db A on my db if I started up db and its listener while TZ environment variable equal to UTC.Now I saw in other post that someone was trying to retrieve systimestamp value in a job executed via dbms_scheduler.run_job.
So I did that in two ways. 1 with use_current_session = true and 2 is false for the same.On my db, results are the same (both returns time in UTC) but on db A, I got UTC time when use_current_session = true and PST when use_current_session = false.
So questions are: What could be the difference in setup between my db and db A? Is there a query, logfile, or anything I should check to find out what can be the difference?
I tried to find the cause with my db and I could see the same result as db A which is to see UTC time if use_current_session = true and PST time if use_current_session = false by bringing up the db listener after I set TZ environment variable equal to PST8PDT. However this causes systimestamp from sqlplus session become also a PST time.
The reason I’m playing around with the setup and checking systimestamp value is because we are facing the situation where everywhere except pl/sql job submitted by enterprise scheduler service is pointing wrong timezone (PST instead of UTC)
on 10g R2 on AIX. today (30th of Nov at 7PM) I want to restore my DB from a full backup done on 21 of Nov at 9AM.
Should I : RMAN> Run { 2> shutdown immediate; 3> startup nomount; 4> SET UNTIL TIME "TRUNC(SYSDATE) - 8";Is my "SET UNTIL TIME "TRUNC(SYSDATE) - 8" accurate ?
I have created a datablock and set up the user interface to allow the users to insert all the data they need, however my table has some fields which should be generated automatically and are not done through user input:
id - which is uniqe to each entry to the table so is gernerate by a sequence (which I created on the database) but when i put seq.nextval into the initial value on the datablock it says i cannot do this, so how do I use the sequence to insert the value into that field in the database. This is my primary key in my database whichobviosuly my users cant input data to, instead it is generated automatically.
User - similarly in the datablock is a user field which states the user that inserted that record, I know on the database i can put DEFAULT user for that field , but how do I make the user insert automatically through forms.
Date - Similarly again how do I set SYSDATE to be automatically input to the date field when the user submits the record?
I'm trying to use SYSTDATE in a WHERE clause of nested SELECTS..I want to select a range of info from two days back from today until today (or time it is being run). But when I run this, it says I have a missing expression...
SELECT XXXX FROM XXXX WHERE DATE BETWEEN TO_DATE(SELECT TO_CHAR(SYSDATE, 'YYYYMMDD') -2) AND TO_DATE(SELECT TO_CHAR(SYSDATE, 'YYYYMMDD HH24:MI:SS'))
I just want to know whether can i create a trigger where the sysdate can be automatically written into a table? for ex: if to_char(sysdate,'HH24:MI:SS') = 18:00:00 then it should be written in a table..?? is there anyother way instead of triggers??
Create Table A ( a number, CreationDate DATE) PARTITION BY RANGE (CreationDate) ( Partition p_03122012 VALUES LESS THAN (TIMESTAMP' 2012-12-04 00:00:00'),
[Code]...
NOTE: Partition are named as p_ddmmyyyy where ddmmyyyy is date.
select * from dba_tab_partitions where table_name = 'A'
Now my requirement is :
select * from dba_tab_partitions where table_name = 'A' and partition_name > 'p_ddmmyyyy' (Here I want ddmmyyyy to be from sysdate i.e. date we get from - Select to_char(sysdate,'ddmmyyyy') from dual i.e. for today it becomes select * from dba_tab_partitions where table_name = 'A' and partition_name > 'P_04122012'
