What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.

5 Answers   Polaris,

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How do you select unique values in sql?

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What are different types of functions in sql?

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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 meant by urlencode and urldocode? : Sql dba

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What is the difference between the repeatable read and serializable isolation levels? : Transact sql

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How to run pl sql program in mysql?

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How to start the command-line sql*plus?

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how will you find out the last three records in a table with n no of records and delete them

3 Answers  

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how to insert the data through views? The view is depending upon more than two tables? how to update materalized views?

3 Answers   3i Infotech,

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What is sql deadlock?

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Define a temp table?

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