Can you have multiple SPs with the same name on a database?

2 Answers   CGI, Quest,

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What are the different types of joins and explain them briefly.

3 Answers  

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How can we find duplicate records in a table?

0 Answers  

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What is full join in sql?

0 Answers  

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What are different types of joins ?

5 Answers   BirlaSoft,

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what are numeric data types? : Sql dba

0 Answers  

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What is nosql vs sql?

0 Answers  

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What is the use of nvl function?

0 Answers  

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What is sql lookup?

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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What is the difference between syntax error and runtime error?

0 Answers  

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What is constant in pl sql?

0 Answers  

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