Write a query to get last 10 records from the table.

12 Answers   iNautix,

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What is normalization sql?

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 a sub query?how will you calculate working days in a month using sub query?

4 Answers   InteQ,

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define sql update statement ? : Sql dba

0 Answers  

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differentiate between float and double. : Sql dba

0 Answers  

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What is the difference between function, procedure and package in pl/sql?

0 Answers  

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How do I add a database to sql?

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what is blob? : Sql dba

0 Answers  

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What are the query optimization techniques?

0 Answers  

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how can we encrypt and decrypt a data present in a mysql table using mysql? : Sql dba

0 Answers  

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What is mutating trigger?

0 Answers  

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