Do you know the basic structure of PL/SQL?

3 Answers  

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Explain the structure of pl/sql in brief.

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 do I make sql search faster?

0 Answers  

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What is the need of a partition key?

0 Answers  

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What are the usage of SAVEPOINTS?

5 Answers  

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What are Nested Tables? How will u delete 5 rows from Nested Tables

3 Answers   IBM,

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explain primary keys and auto increment fields in mysql : sql dba

0 Answers  

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What are two parts of package ?

2 Answers   Infosys,

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There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?

1 Answers   Cognizant,

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What are the benefits of pl sql?

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What are the types of variable use in pl sql?

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