How do you run a query?

0 Answers  

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What does := mean in pl sql?

0 Answers  

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what command is used to create a table by copying the structure of another table including constraints ?

6 Answers   CMC, eicc,

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How to generate a salary slip like jan 1000 1000 feb 1000 2000 ... dec 1000 12000

0 Answers   BT,

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How to select unique records from a table?

0 Answers  

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Hi All, I am new to both this blog and technology. I was able to see a response for one of the questions on triggers as below. I would like to know why are we using " if rtrim(to_char(sysdate,'day'))=rtrim('sunday') then" instead, can't we use " if sysdate = 'sunday' then". I can understand the use of "rtrim", but dont know y v r using to_char. I have seen this in many cases but did not get a convincible explaination. Please help me with this and do excuse if this question sounds silly. Thanks in advance...... create or replace trigger trg_sun before insert on <table name> begin if rtrim(to_char(sysdate,'day'))=rtrim('sunday') then raise_application_error(-20345,'no transaction in sunday'); end if; end trg_sun;

2 Answers  

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Hi Everyone, How to get fist and last record from a table in oracle? Thanks in advance

13 Answers   IBM,

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Can delete statement be rollbacked?

0 Answers  

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what is the difference between truncate and delete statement? : Transact sql

0 Answers  

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Why plvtab is considered as the easiest way to access the pl/sql table?

0 Answers  

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What is case function?

0 Answers  

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in procedure how to return a value

3 Answers   Wipro,

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