what are the advantages of sql ? : Sql dba
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Can you create a table with Primary Key not as the clustered index.
Write an sql query to select all records from the table?
What will be the output of the following String S = 1+2+"abc" S = ? String S1 = 1+2+"abc"+5+6 S1 = ?
What is clustered index sql?
Why do we use cursors?
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;
What is a clob in sql?
How to write pl sql program in mysql command prompt?
What is pl/sql tables?
How do I install microsoft sql?
What is use of trigger?
explain the difference between delete , truncate and drop commands? : Sql dba
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