Query optimization for multiple subsets - sql

Question

I have a "personnel basic information table", and it will be referenced by many "personnel subset tables" (there is no relationship between these subset tables, they are just a subset of the basic information of the personnel).
Now there is a requirement to merge the "personnel subset" into a column based on the person's foreign key and display it as a field of the "personnel basic information" (after the "personnel subset" is merged, each person record will only display one row) .
And the basic personnel information and personnel subset information will be passed into the query conditions, so these conditions are dynamically assembled.
It has been implemented now, but the problem is that the query needs to be optimized. Execution will be particularly slow once.
Database is oracle 11g.
Here is the sql generated by a certain query:
WITH in_hr_work_party_current AS (
SELECT
*
FROM
hr_work_party
WHERE
status = '1'
AND removaltime IS NULL
AND (
appointorg IS NOT NULL
OR NAME IS NOT NULL
)
),
qv_hr_work_party_current AS (
SELECT
empid,
listagg (
DECODE (
appointorg, NULL, '', 'oidstart' || appointorg || 'oidend-'
) || NVL (NAME, 'xx'),
','
) WITHIN GROUP (
ORDER BY
positiongrade ASC,
positionorder ASC,
appointtime ASC
) AS party_current_info
FROM
in_hr_work_party_current
GROUP BY
empid
),
in_position_postwork_main AS (
SELECT
po.empid,
working_coid_name AS post_main_coid_name,
working_poid_name AS post_main_poid_name,
officedepname AS post_main_officedepname,
post AS post_main_post,
posttype AS post_main_posttype,
workprof AS post_main_workprof,
starttime AS post_main_starttime,
FLOOR (
CEIL (
MONTHS_BETWEEN (
NVL (
TO_DATE (po.endtime, 'yyyy-MM-dd'),
SYSDATE
),
TO_DATE (po.starttime, 'yyyy-MM-dd')
)
) / 12
) || 'xx' AS post_main_years,
epo.entrytime AS post_main_entrytime,
ROW_NUMBER () OVER (
PARTITION BY po.empid
ORDER BY
po.opttime DESC
) AS rn
FROM
hr_work_postworkinfo po,
hr_work_empposition epo,
v_waf_ac_organ_base dep
WHERE
DEP.OID = PO.officedepid
AND epo.wepid = po.wepid
AND po.status = '1'
AND po.officetype = '00'
AND is_date (po.starttime) = 1
AND (
is_date (po.endtime) = 1
OR po.endtime IS NULL
)
AND epo.empsort = '01'
AND epo.subrelation = '01'
AND dep.orule LIKE '-xxxxx-%'
),
qv_position_postwork_main AS (
SELECT
*
FROM
in_position_postwork_main
WHERE
rn = 1
),
in_postworkinfo AS (
SELECT
po.*,
epo.entrytime,
epo.leavetime,
epo.empsort,
epo.empstatus,
epo.subrelation,
(
working_coid_name || DECODE (
working_poid_name, NULL, '', '-' || working_poid_name
) || DECODE (
officedepname, NULL, '', '-' || officedepname
)
) orgname,
FLOOR (
CEIL (
MONTHS_BETWEEN (
NVL (
TO_DATE (po.endtime, 'yyyy-MM-dd'),
SYSDATE
),
TO_DATE (po.starttime, 'yyyy-MM-dd')
)
) / 12
) postyear,
MOD (
CEIL (
MONTHS_BETWEEN (
NVL (
TO_DATE (po.endtime, 'yyyy-MM-dd'),
SYSDATE
),
TO_DATE (po.starttime, 'yyyy-MM-dd')
)
),
12
) postmonth,
ROW_NUMBER () OVER (
PARTITION BY po.empid
ORDER BY
po.starttime DESC
) rn,
COUNT (*) OVER (PARTITION BY po.empid) ct
FROM
hr_work_postworkinfo po,
HR_WORK_EMPPOSITION EPO,
V_WAF_AC_ORGAN_BASE DEP
WHERE
po.wepid = EPO.wepid
AND PO.officedepid = DEP.OID
AND is_date (starttime) = 1
AND (
is_date (endtime) = 1
OR endtime IS NULL
)
AND epo.empstatus != '05'
AND DEP.orule LIKE '-xxxxxx-%'
),
qv_hr_position_postwork AS (
SELECT
empid,
listagg (
'[' || starttime || 'xx' || NVL (endtime, 'xx') || 'xx' || orgname || 'xx' || NVL (post, 'xx') || 'xx' || NVL (posttype, 'xx') || 'xx' || DECODE (
postyear, 0, '', postyear || 'xx'
) || DECODE (
postmonth, 0, '', postmonth || 'xxxx'
) || 'xx' || NVL (postgradation, 'xx') || 'xxxx' || entrytime || 'xx' || empsort || 'xx' || empstatus || 'xx' || subrelation || ']',
','
) WITHIN GROUP (
ORDER BY
starttime DESC
) || (
CASE WHEN ct >= 5 THEN ',...' ELSE '' END
) work_info
FROM
in_postworkinfo
WHERE
rn <= 5
GROUP BY
empid,
ct
),
in_hr_emp_basicinfo AS (
SELECT
emp.*
FROM
hr_emp_basicinfo emp
),
qv_hr_emp_basicinfo_view AS (
SELECT
in_hr_emp_basicinfo.*
FROM
in_hr_emp_basicinfo
),
in_party AS (
SELECT
hr_work_party.NAME,
hr_work_party.empid,
hr_work_party.appointno,
hr_work_party.appointtime,
hr_work_party.removaltime,
hr_work_party.positiongrade,
NVL (
waf_ac_organ.NAME, hr_work_party.appointorg
) apporg,
ROW_NUMBER () OVER (
PARTITION BY hr_work_party.empid
ORDER BY
appointtime DESC,
removaltime DESC,
positiongrade ASC,
positionorder ASC
) rn,
COUNT (*) OVER (PARTITION BY hr_work_party.empid) ct
FROM
hr_work_party,
waf_ac_organ
WHERE
hr_work_party.status = '1'
AND hr_work_party.appointorg = waf_ac_organ.OID (+)
AND (
hr_work_party.appointorg IS NOT NULL
OR hr_work_party.NAME IS NOT NULL
)
),
qv_hr_work_party AS (
SELECT
empid,
listagg (
'[' || appointtime || 'xx' || NVL (removaltime, 'xx') || ' ' || apporg || '-' || NVL (NAME, 'xx') || DECODE (
NVL (appointno, 'xx'),
'xx',
'',
' - ' || appointno
) || ']',
','
) WITHIN GROUP (
ORDER BY
rn ASC
) || (
CASE WHEN ct > 10 THEN ',...' ELSE '' END
) app_party,
listagg (
'[' || appointtime || 'xx' || NVL (removaltime, 'xx') || ' ' || apporg || '-' || NVL (NAME, 'xx') || DECODE (
positiongrade, NULL, '', '(' || positiongrade || ')'
) || ']',
','
) WITHIN GROUP (
ORDER BY
rn ASC
) || (
CASE WHEN ct > 10 THEN ',...' ELSE '' END
) AS party_grade
FROM
in_party
WHERE
rn <= 10
GROUP BY
empid,
ct
)
SELECT
*
FROM
(
SELECT
dumb_table.*,
ROWNUM dumb_rn
FROM
(
SELECT
qv_hr_work_party_current.party_current_info,
qv_position_postwork_main.post_main_coid_name,
qv_position_postwork_main.post_main_poid_name,
qv_position_postwork_main.post_main_officedepname,
qv_position_postwork_main.post_main_years,
qv_hr_emp_basicinfo_view.age,
qv_hr_emp_basicinfo_view.NAME,
qv_hr_position_postwork.work_info
FROM
qv_hr_work_party_current,
qv_position_postwork_main,
qv_hr_work_party,
qv_hr_position_postwork,
qv_hr_emp_basicinfo_view
WHERE
1 = 1
AND qv_hr_emp_basicinfo_view.empid = qv_hr_work_party_current.empid(+)
AND qv_hr_emp_basicinfo_view.empid = qv_position_postwork_main.empid(+)
AND qv_hr_emp_basicinfo_view.empid = qv_hr_work_party.empid (+)
AND qv_hr_emp_basicinfo_view.empid = qv_hr_position_postwork.empid
AND qv_hr_emp_basicinfo_view.empid IS NOT NULL
ORDER BY
qv_hr_emp_basicinfo_view.sno
) dumb_table
)
WHERE
dumb_rn <= 30
AND dumb_rn > 0
enter image description here