What is java sql package?

0 Answers  

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What are the steps you take to tune(performance tuning) the code in plsql?

4 Answers   Cap Gemini, Infosys, TCS,

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Table Order_Name has a column Order_Date which gives the date & Time at which the order is passed.Find the table to write a query to find out the latest order.

5 Answers   Thomson,

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How do you handle exceptions. Give the syntax for it?

1 Answers   BCL, Microsoft,

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What are sql constraints?

0 Answers  

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What is input buffer in sql*plus?

0 Answers  

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How to fetch the rows by dynamicaly passing table name through cursor?

3 Answers  

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- Types of triggers - View - Dcl - Procedures, packages, functions - Metasolve - Can use Dcl in triggers - package case study - Cursor and its types - triggers schedule - Wrap - Why we are using fetch and for in cursor. difference?

0 Answers   CTS,

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Can we perform dml in function?

0 Answers  

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what is a control file ? : Sql dba

0 Answers  

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What is denormalization in a database?

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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