SQL Server Errors Question: Download Questions PDF
In one table there is 10 records without id num, without primary key and it is not sorted then how to extract last 6 record from table?
Answer:
CREATE TABLE Sample
(
Col1 varchar(5)
)
insert into Sample values('j')
TABLE:
Col1
j
r
c
r
e
f
g
h
x
j
USING CURSOR: ANSWER
DECLARE @COL1 VARCHAR(5)
DECLARE @COUNT VARCHAR(5)
SET @COUNT=0
DECLARE c1 CURSOR
FOR
SELECT COL1 FROM SAMPLE
OPEN C1
FETCH NEXT FROM C1
INTO @COL1
WHILE @@FETCH_STATUS=0
BEGIN
SET @COUNT=@COUNT+1
IF @COUNT>=5
BEGIN
SELECT @COL1
END
FETCH NEXT FROM C1
INTO @COL1
END
CLOSE C1
DEALLOCATE C1
(
Col1 varchar(5)
)
insert into Sample values('j')
TABLE:
Col1
j
r
c
r
e
f
g
h
x
j
USING CURSOR: ANSWER
DECLARE @COL1 VARCHAR(5)
DECLARE @COUNT VARCHAR(5)
SET @COUNT=0
DECLARE c1 CURSOR
FOR
SELECT COL1 FROM SAMPLE
OPEN C1
FETCH NEXT FROM C1
INTO @COL1
WHILE @@FETCH_STATUS=0
BEGIN
SET @COUNT=@COUNT+1
IF @COUNT>=5
BEGIN
SELECT @COL1
END
FETCH NEXT FROM C1
INTO @COL1
END
CLOSE C1
DEALLOCATE C1
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