What is the difference between python and sql?
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What is sqlcommand?
Is there a pl/sql pragma similar to deterministic, but for the scope of one single sql select?
Why stored procedures are faster than query?
What is a unique constraint?
Why is theta join required?
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;
Which one is faster ienumerable or iqueryable?
What is varchar used for?
What are different types of functions in sql?
What is a temp table?
What are records give examples?
Mention what problem one might face while writing log information to a data-base table in pl/sql?