1) In a dataset how to delete a single row?
2) i have 50 rows , i want to display 5-7 records only?
How to write the sql query?
3)i have 40 rows,i want to display last row? write sql query?
Answers were Sorted based on User's Feedback
Answer / segu satish
answer for 3rd question:
select * from emp where rowid =(select max(rowid) from emp)
| Is This Answer Correct ? | 13 Yes | 1 No |
1) using external filter we use command is sed we get
2)select * from (select rownum rno,emp.* from emp)
where rno in(5,6,7)
or
select * from (select rownum rno,emp.* from emp)
where rno between 5 and 7
or
select * from emp where rownum<8
minus
select * from emp where rownum<5
in first two are very efiiciency compare to third one
because in third iam using set operator
3)select * from emp where rowid=(select max(rowid) from emp);
| Is This Answer Correct ? | 11 Yes | 0 No |
Answer / reddy obul
__for 2nd question answer is:
select * from table where rowid<8 minus select * from table
where rowid<5
__for 3rd quesion answer is:
select * from emp where rowid in(select max(rowid) from emp)
| Is This Answer Correct ? | 9 Yes | 9 No |
Answer / sarath
for 2nd:
select * from table where rownum<8 minus select * from table where rownum<5;
| Is This Answer Correct ? | 4 Yes | 4 No |
Answer / ravi
1 answere : we can use @rownum =1 and reject the first record....
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / subbu
2nd answer:
select * from(select rowid from tablename where rowid between 5 and 7);
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / ritesh chatterjee
Answer to Qust 1
Sed 1d "Dataset Name" from unix by this way you can delete
1st record from dataset,in place of 1 you can place any number.
Answer to Question 2
select * from tablename
where rowid between 2 and 7;
Answer to 3rd qus:-
select * from tablename
where rownum = 40;
| Is This Answer Correct ? | 0 Yes | 3 No |
what is the main difference between sorragate key n primary key in one word
Have you have ever worked in unix environment and why it is useful in datastage?
in job of 30 one job is very slow due to this entire job is very slow how can u know which job is slow?
how to get the unique records on multiple columns by using sequential file stage only
what is the best stage in datastage parller jobs to use full out join and why
how to design the change capture stage in(data stage parallel jobs) type 2
how to find out number of records imported into source file?
Hi All, I have a file. i need to fetch the records between first and last records by using transform stage. EX:- Source: EMPNO EMPNAME 4567 shree 6999 Ram 3265 Venkat 2655 Abhi 3665 Vamsi 5852 Amit 3256 Sagar 3265 Vishnu Target: EMPNO EMPNAME 6999 Ram 3265 Venkat 2655 Abhi 3665 Vamsi 5852 Amit 3256 Sagar I dont wan't to Shree and vishnu records.we can fetch another way also but How can I write the function in transform stage?
in datastage interview qustion source target ------- ------- 12345 1 2 3 4 5
I have 3 jobs A,B and C , which are dependent each other. I want to run A & C jobs daily and B job run only on sunday. how can we do it?
What is the function in Transformer stage can act as Rank Function in oracle
Hi, what is use of Macros,functions and Routines..? At what situation you are used. If you know the answer please explain it. Thanks.