How can I get the number of records affected by a stored procedure?

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Why do we use sql constraints? Which constraints we can use while creating database in sql?

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What is data types in sql?

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Can sql developer connect to db2?

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How many scalar data types are supported in pl/sql?

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How to sort the rows in sql.

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What does 0 mean in sql?

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What does fetching a cursor do?

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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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What is primary key secondary key alternate key candidate key?

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how to shut down the server with 'mysqladmin'? : Sql dba

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Types of joins ?

3 Answers   Digital GlobalSoft, HeadStrong,

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