How to start the command-line sql*plus?

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How to handle bulk data?

0 Answers  

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how to write date and time literals? : Sql dba

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How can a function retun more than one value in oracle with proper example?

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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How is indexing done in search engines?

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what is the difference between union and union all

14 Answers   IBM, Luxoft, Oracle,

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What is cost in sql execution plan?

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What is compilation error in pl sql?

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Can I create table without primary key?

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Can we declare a column having number data type and its scale is larger than pricesionex: column_name number(10,100),column_name numbaer(10,-84)

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How do u count no of rows in a table?

8 Answers   CTS,

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