Alternate rows from a table:
CREATE TABLE STUDENTS(
STUDENT_ID int NULL,
[STUDENT_NAME] [varchar](50) NULL,
DOB date NULL,
DEPARTMENT_ID int NULL,
DOJ date NULL
)
GO
INSERT STUDENTS (STUDENT_ID, STUDENT_NAME, DOB, DEPARTMENT_ID,DOJ) VALUES (1, N'ASHISH', '1990-10-28', 2, GETDATE())
INSERT STUDENTS (STUDENT_ID, STUDENT_NAME, DOB, DEPARTMENT_ID,DOJ) VALUES (2, N'MANISH', '1991-06-17', 1, GETDATE())
INSERT STUDENTS (STUDENT_ID, STUDENT_NAME, DOB, DEPARTMENT_ID,DOJ) VALUES (3, N'AMIT', '1992-06-30', 3, GETDATE())
INSERT STUDENTS (STUDENT_ID, STUDENT_NAME, DOB, DEPARTMENT_ID,DOJ) VALUES (4, N'PANKAJ', '1995-10-05', 4, GETDATE())
INSERT STUDENTS (STUDENT_ID, STUDENT_NAME, DOB, DEPARTMENT_ID,DOJ) VALUES (5, N'SUMIT', '1998-04-06', 5, GETDATE())
Method 1:
SELECT STUDENT_ID,STUDENT_NAME,DOB,DEPARTMENT_ID,DOJ FROM(
SELECT ROW_NUMBER()OVER (ORDER BY STUDENT_ID)AS ROW,* FROM STUDENTS)
A WHERE ROW%2=0
Method 2:
WITH CTE AS
(
SELECT ROW_NUMBER()OVER (ORDER BY STUDENT_ID)AS ROW,* FROM STUDENTS
)
SELECT STUDENT_ID,STUDENT_NAME,DOB,DEPARTMENT_ID,DOJ FROM CTE WHERE ROW%2=0
Method 3:
SELECT ROW_NUMBER()OVER (ORDER BY STUDENT_ID)AS ROW,* INTO_TEMP_STUDENTS FROM STUDENTS
SELECT STUDENT_ID,STUDENT_NAME,DOB,DEPARTMENT_ID,DOJ FROM_TEMP_STUDENTS WHERE ROW%2=0
Method 4:
SELECT IDENT=IDENTITY(int, 1,1),* into TEMP_STUDENTS FROM STUDENTS
SELECT STUDENT_ID,STUDENT_NAME,DOB,DEPARTMENT_ID,DOJ FROM TEMP_STUDENTS WHERE IDENT%2=0
