问题
Below is my table structure and data.
EMPLID EMPL_RCD EFFDT Eff_SEQ HR_STATUS PER_ORG
722243 0 21-Nov-18 0 A CWR
722243 0 15-May-19 0 A CWR
722243 0 20-May-19 0 I CWR
722243 1 20-May-19 0 A EMP
120707 1 14-May-19 0 A EMP
120707 0 29-May-19 0 I EMP
120707 1 29-May-19 0 I EMP
120707 2 29-May-19 0 A CWR
when I pass month start date and end date in my query('01-MAY-2019' AND '31-MAY-2019') the query should display the data like below for EMPLID 722243 and 120707.
EMPLID Date PER_ORG HR_STATUS
---------------------------------------------------------
722243 01-MAY-19 CWR A
722243 02-MAY-19 CWR A
722243 03-MAY-19 CWR A
722243 04-MAY-19 CWR A
same should display until 19-MAY-19
722243 19-MAY-19 CWR A
120707 29-MAY-19 CWR A
120707 30-MAY-19 CWR A
120707 31-MAY-19 CWR A
Please help me out on this.
回答1:
Oracle Setup:
CREATE TABLE table_name ( EMPLID, EMPL_RCD, EFFDT, Eff_SEQ, HR_STATUS, PER_ORG ) AS
SELECT 722243, 0, DATE '2018-11-21', 0, 'A', 'CWR' FROM DUAL UNION ALL
SELECT 722243, 0, DATE '2019-05-15', 0, 'A', 'CWR' FROM DUAL UNION ALL
SELECT 722243, 0, DATE '2019-05-20', 0, 'I', 'CWR' FROM DUAL UNION ALL
SELECT 722243, 1, DATE '2019-05-20', 0, 'A', 'EMP' FROM DUAL UNION ALL
SELECT 120707, 1, DATE '2019-05-14', 0, 'A', 'EMP' FROM DUAL UNION ALL
SELECT 120707, 0, DATE '2019-05-29', 0, 'I', 'EMP' FROM DUAL UNION ALL
SELECT 120707, 1, DATE '2019-05-29', 0, 'I', 'EMP' FROM DUAL UNION ALL
SELECT 120707, 2, DATE '2019-05-29', 0, 'A', 'CWR' FROM DUAL;
Query: All PER_ORG values:
WITH bounds ( start_date, end_date ) AS (
SELECT DATE '2019-05-01', DATE '2019-05-31' FROM DUAL
),
calendar ( dt ) AS (
SELECT start_date + LEVEL - 1
FROM bounds
CONNECT BY start_date + LEVEL - 1 <= end_date
),
table_name_with_prev_status ( emplid, effdt, hr_status, per_org, prev_hr_status ) AS (
SELECT EMPLID,
EFFDT,
HR_STATUS,
PER_ORG,
LAG( HR_STATUS, 1, 'I' )
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY EFFDT, EMPL_RCD )
FROM table_name
),
statuses ( emplid, effdt, hr_status, per_org ) AS (
SELECT EMPLID,
DT,
COALESCE(
HR_STATUS,
LAG( HR_STATUS ) IGNORE NULLS
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY DT ),
LEAD( PREV_HR_STATUS ) IGNORE NULLS
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY DT )
),
PER_ORG
FROM calendar c
LEFT OUTER JOIN table_name_with_prev_status t
PARTITION BY ( t.EMPLID, t.PER_ORG )
ON ( c.dt = t.effdt )
)
SELECT *
FROM statuses
WHERE HR_STATUS = 'A'
ORDER BY emplid, effdt
Output:
EMPLID | EFFDT | HR_STATUS | PER_ORG -----: | :-------- | :-------- | :------ 120707 | 14-MAY-19 | A | EMP 120707 | 15-MAY-19 | A | EMP 120707 | 16-MAY-19 | A | EMP 120707 | 17-MAY-19 | A | EMP 120707 | 18-MAY-19 | A | EMP 120707 | 19-MAY-19 | A | EMP 120707 | 20-MAY-19 | A | EMP 120707 | 21-MAY-19 | A | EMP 120707 | 22-MAY-19 | A | EMP 120707 | 23-MAY-19 | A | EMP 120707 | 24-MAY-19 | A | EMP 120707 | 25-MAY-19 | A | EMP 120707 | 26-MAY-19 | A | EMP 120707 | 27-MAY-19 | A | EMP 120707 | 28-MAY-19 | A | EMP 120707 | 29-MAY-19 | A | CWR 120707 | 30-MAY-19 | A | CWR 120707 | 31-MAY-19 | A | CWR 722243 | 01-MAY-19 | A | CWR 722243 | 02-MAY-19 | A | CWR 722243 | 03-MAY-19 | A | CWR 722243 | 04-MAY-19 | A | CWR 722243 | 05-MAY-19 | A | CWR 722243 | 06-MAY-19 | A | CWR 722243 | 07-MAY-19 | A | CWR 722243 | 08-MAY-19 | A | CWR 722243 | 09-MAY-19 | A | CWR 722243 | 10-MAY-19 | A | CWR 722243 | 11-MAY-19 | A | CWR 722243 | 12-MAY-19 | A | CWR 722243 | 13-MAY-19 | A | CWR 722243 | 14-MAY-19 | A | CWR 722243 | 15-MAY-19 | A | CWR 722243 | 16-MAY-19 | A | CWR 722243 | 17-MAY-19 | A | CWR 722243 | 18-MAY-19 | A | CWR 722243 | 19-MAY-19 | A | CWR 722243 | 20-MAY-19 | A | EMP 722243 | 21-MAY-19 | A | EMP 722243 | 22-MAY-19 | A | EMP 722243 | 23-MAY-19 | A | EMP 722243 | 24-MAY-19 | A | EMP 722243 | 25-MAY-19 | A | EMP 722243 | 26-MAY-19 | A | EMP 722243 | 27-MAY-19 | A | EMP 722243 | 28-MAY-19 | A | EMP 722243 | 29-MAY-19 | A | EMP 722243 | 30-MAY-19 | A | EMP 722243 | 31-MAY-19 | A | EMP
Query: Just CWR values:
WITH bounds ( start_date, end_date ) AS (
SELECT DATE '2019-05-01', DATE '2019-05-31' FROM DUAL
),
calendar ( dt ) AS (
SELECT start_date + LEVEL - 1
FROM bounds
CONNECT BY start_date + LEVEL - 1 <= end_date
),
table_name_with_prev_status ( emplid, effdt, hr_status, per_org, prev_hr_status ) AS (
SELECT EMPLID,
EFFDT,
HR_STATUS,
PER_ORG,
LAG( HR_STATUS, 1, 'I' )
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY EFFDT, EMPL_RCD )
FROM table_name
),
statuses ( emplid, effdt, hr_status, per_org ) AS (
SELECT EMPLID,
DT,
COALESCE(
HR_STATUS,
LAG( HR_STATUS ) IGNORE NULLS
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY DT ),
LEAD( PREV_HR_STATUS ) IGNORE NULLS
OVER ( PARTITION BY EMPLID, PER_ORG ORDER BY DT )
),
PER_ORG
FROM calendar c
LEFT OUTER JOIN table_name_with_prev_status t
PARTITION BY ( t.EMPLID, t.PER_ORG )
ON ( c.dt = t.effdt )
)
SELECT *
FROM statuses
WHERE HR_STATUS = 'A'
AND PER_ORG = 'CWR'
ORDER BY emplid, effdt
Output:
EMPLID | EFFDT | HR_STATUS | PER_ORG -----: | :-------- | :-------- | :------ 120707 | 29-MAY-19 | A | CWR 120707 | 30-MAY-19 | A | CWR 120707 | 31-MAY-19 | A | CWR 722243 | 01-MAY-19 | A | CWR 722243 | 02-MAY-19 | A | CWR 722243 | 03-MAY-19 | A | CWR 722243 | 04-MAY-19 | A | CWR 722243 | 05-MAY-19 | A | CWR 722243 | 06-MAY-19 | A | CWR 722243 | 07-MAY-19 | A | CWR 722243 | 08-MAY-19 | A | CWR 722243 | 09-MAY-19 | A | CWR 722243 | 10-MAY-19 | A | CWR 722243 | 11-MAY-19 | A | CWR 722243 | 12-MAY-19 | A | CWR 722243 | 13-MAY-19 | A | CWR 722243 | 14-MAY-19 | A | CWR 722243 | 15-MAY-19 | A | CWR 722243 | 16-MAY-19 | A | CWR 722243 | 17-MAY-19 | A | CWR 722243 | 18-MAY-19 | A | CWR 722243 | 19-MAY-19 | A | CWR
db<>fiddle here
来源：https://stackoverflow.com/questions/57185095/how-to-display-employee-status-day-wise-in-a-month