What is duration in sql profiler trace?

0 Answers  

---

How do I run pl sql in sql developer?

0 Answers  

---

How do I count duplicates in sql?

0 Answers  

---

how to convert dates to character strings? : Sql dba

0 Answers  

---

how will u find statistics of a database objects?

2 Answers   iFlex,

---

How many aggregate functions are available there in sql?

0 Answers  

---

What is not equal in sql?

0 Answers  

---

What is the purpose of normalization?

0 Answers  

---

What is natural join in sql?

0 Answers  

---

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  

---

I need a exceptoin in pl/sql block so that if any errors occur in the block then no exception should errors should raise?

1 Answers  

---

What is primary key and unique key?

0 Answers  

---