Can %notfound return null after a fetch?

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What are the topics in pl sql?

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Why do we use procedures in sql?

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what are all types of user defined functions? : Sql dba

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How do we tune the code?

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Is progress software supports to ( pl/sql )?

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what is self join and why is it required? : Sql dba

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What is the difference between drop and truncate commands?

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What is java sql driver?

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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;

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Explian rowid, rownum?

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What is bulk collections?

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