Skip to main content

Find the default date format for your current session


For input and output of dates, every Oracle Database instance has a default date format model (also called a mask) that is set by the NLS_DATE_FORMAT initialization parameter. (Initialization parameters determine the default settings for Oracle Database instances. Users who have appropriate permissions can change some of these parameters on a per-database, per-instance, or per-session basis.) When you first query the data stored in a table column with a DATE datatype, Oracle Database displays it with a format mask of either DD-MON-YYYY or DD-MON-RR, depending on which is set as the default.

Comments

Post a Comment

Popular posts from this blog

Oracle Developer Technical Interview Questions

Here i am putting all the questions i had faced during my interviews ... Interview at “3i InfoTech”, Chennai:  1) What is flow of execution of WHEN-NEW-FORM-INSTANCE, WHEN-NEW-BLOCK-INSTANCE, and WHEN-NEW-ITEM-INSTANCE? 2) What is PRE-QUERY and POST-QUERY? When these triggers will fire? 3) If the object library with some blocks and triggers if a form inherited that object library if u doesn’t need some trigger to be inherited the can u delete that trigger from that form? 4) How u can call a report from a form? Which property u has set in runtime? 5) If u create a relation between two blocks in the form what are all triggers it will create? 6) What is a ref cursor? 7) To call a form which type of built-ins u has to use? 8) What is the main difference between expand and variable property for a text item in reports. 9) In a report layout there is accepted and rejected fields and it has a parameter when u run the report based on the parameter the output should sh...

Communicating with a RDBMS Using SQL

What is SQL? SQL Stands for Structured Query Language. I t is the  international  standard language for relational database management systems. It is useful for  accessing and manipulating data in a databases.  To access the database, you execute a structured query language (SQL) statement, which is the American National Standards Institute (ANSI) standard language for operating relational databases.

Difference Between CASE and DECODE?

– CASE is a expression – DECODE is a function - CASE expression is ANSI SQL Statement - DECODE is specific to Oracle Syntax - CASE syntax contains WHEN and THEN  - DECODE will not have this - CASE allow expressions or Scalar Sub query Expressions inside the CASE statement - DECODE won't allow expressions inside the DECODE function