7 Replies Latest reply on Nov 25, 2019 5:16 PM by John Thorton

Dynamic sql creation

Rafal S Nov 18, 2019 9:51 AM

Hi !

I was wondering if You could help me with this ....

I have to build a view for Tableau reporting.

I have only one dimension which is common for all source systems (core) which i would like to join with all of the Source systems.

After that i would like to union all of the source systems with country dimension.

If i do it manually its pretty simple-just need to add some codes in couple of places.

I was thinking if there is a way to generate all this union query.

So i would give lets say 3 (and later more) tables and as result would have automaticly generated union view.

Maybe some dynamic sql would do the trick ?

Any help appreciated.

WITH CORE AS /*one shared dimension*/
(
select country from MDM
)

,Q_A AS /*Source system A*/

(

select

cA1,

cA2

from A

)

,Q_B AS /*Source system b*/

(

select

cB1,

cB2

from B

)

,Q_C AS /*Source system C*/

(

select

cC1,

cC2

from B

)

,RESULTS AS

(

select

country

cA1,

cA2

null

null

null

null

from core left join Q_A

union

select

   country

   null

   null

cB1,

    cB2

null

null

from core left join Q_B

select

country

null

null
null

cC1,

cC2

from core left join Q_C

)

select

cA1,

cA2

cB1,

cB2

cC1

cC2

FROM RESULTS

1. Re: Dynamic sql creation

GregV Nov 18, 2019 10:39 AM (in response to Rafal S)

Yes you can build your statement using some pl/sql code. In your case UNION ALL would be better than UNION, unless the 2 columns you select can be both null. You should do all the unions and then left join the result to CORE so that you query the latter only once.
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2. Re: Dynamic sql creation

Rafal S Nov 18, 2019 1:40 PM (in response to GregV)

yes i meant union all

Can You guide me how can i start with this in pl/sql ?

Thanks !
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3. Re: Dynamic sql creation

GregV Nov 18, 2019 4:04 PM (in response to Rafal S)

Will there be always 2 columns in the select list? What about the join condition, is it the same for all tables involved?
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4. Re: Dynamic sql creation

Rafal S Nov 18, 2019 9:34 PM (in response to Rafal S)

Hi
GregV !
So ...

Core data will be the same (i was thinking that i would always select all tables from "core" data)
The join condition will be different....

To simplify this what i would do is to have all of those data ready in initial Q_A,Q_B, Q_C (so already join inside of CTE)

How i see it is to lets say pass the CTE's which i would like to union and based on those the big union view will be created

Q_A 1 2 3 xxx xxx,core.*
Q_B x x x 123 xxx,core.*
Q_C xxxx xxx 123,core.*

I hope its all clear to You,
PS.Please find below more detailed version.
I think its now clear what i am trying to accomplish .
So basically i will be populating the data with more additional CTE's at the beginning ,and my goal with this automated script would be to pass all the CTE's i created and generate this big union all (Results).
You would be a star for me if You can help me with this !!!

SourceSystem1PV AS (

SELECT
   db1.v_SourceSystem1_pv.MetricSystem,
    db1.v_SourceSystem1_pv.MetricName,
    db1.v_SourceSystem1_pv."go1_MAP_TYPE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_PHASE_CODE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_PV_STATUS_CODE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_ID",
    db1.v_SourceSystem1_pv."go1_SP_NAME",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_KEY",
    db1.v_SourceSystem1_pv."go1_PRODUCT_NAME",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_GEO_AREA_NAME",
    db1.v_SourceSystem1_pv."go1_MAP_NAME",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_ACTUAL_START_DATE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_INITIAL_APPROVE_DATE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_PLANNED_START_DATE",
    db1.v_SourceSystem1_pv."go1_MAP_ITEM_INITIAL_APPROVER",
    db1.v_SourceSystem1_pv."go1_MAP_CREATION_DATE",
    db1.v_SourceSystem1_pv."go1_MAP_THERAPEUTIC_AREAS",
    db1.v_SourceSystem1_pv."go1_MAP_RUN_BY_SP"
FROM
    v_SourceSystem1_pv
)
,
--SDQC
SourceSystem1SDQC as
(

SELECT
    db1.v_SourceSystem1_sdqc.metricsystem,
    db1.v_SourceSystem1_sdqc.metricname,
    db1.v_SourceSystem1_sdqc."go2_SDQC_ID",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_KEY",
    db1.v_SourceSystem1_sdqc."go2_MAP_NAME",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_GEO_AREA_NAME",
    db1.v_SourceSystem1_sdqc."go2_MAP_REGION",
    db1.v_SourceSystem1_sdqc."go2_MAP_GEO_SCOPE_NAME",
    db1.v_SourceSystem1_sdqc."go2_MAP_ENTITY",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_PHASE_CODE",
    db1.v_SourceSystem1_sdqc."go2_MAP_TYPE",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_PV_STATUS_CODE",
    db1.v_SourceSystem1_sdqc."go2_MAP_RUN_BY_SP",
    db1.v_SourceSystem1_sdqc."go2_S_CONDUCTED_BY",
    db1.v_SourceSystem1_sdqc."go2_SP_NAME",
    db1.v_SourceSystem1_sdqc."go2_S_SP_NAME",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_SOURCE_DATA_TYPES",
    db1.v_SourceSystem1_sdqc."go2_SDQC_ACTUAL_FREQUENCY",
    db1.v_SourceSystem1_sdqc."go2_S_NO_OF_REC",
    db1.v_SourceSystem1_sdqc."go2_S_SAMPLE_SIZE",
    db1.v_SourceSystem1_sdqc."go2_S_NO_OF_MISSED_ADVERSE_EVENTS",
    db1.v_SourceSystem1_sdqc."go2_S_COMPLETION_DATE",
    db1.v_SourceSystem1_sdqc."go2_S_DEADLINE_DATE",
    db1.v_SourceSystem1_sdqc."go2_S_DUE_DATE",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_ACTUAL_START_DATE",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_PLANNED_END_DATE",
    db1.v_SourceSystem1_sdqc."go2_MAP_ITEM_ACTUAL_END_DATE"
FROM
    db1.v_SourceSystem1_sdqc

)
,
SourceSystem1SPRT as (
SELECT
    db1.v_SourceSystem1_sprt.metricsystem,
    db1.v_SourceSystem1_sprt.metricname,
    db1.v_SourceSystem1_sprt."go3_MAP_ITEM_KEY",
    db1.v_SourceSystem1_sprt."go3_MAP_NAME",
    db1.v_SourceSystem1_sprt."go3_MAP_ITEM_GEO_AREA_NAME",
    db1.v_SourceSystem1_sprt."go3_COMPLETION_DATE",
    db1.v_SourceSystem1_sprt."go3_SP_NAME",
    db1.v_SourceSystem1_sprt."go3_DUE_DATE",
    db1.v_SourceSystem1_sprt."go3_MAP_ITEM_PV_STATUS_CODE",
    db1.v_SourceSystem1_sprt."go3_MAP_ITEM_PHASE_CODE",
    db1.v_SourceSystem1_sprt."go3_MAP_TYPE",
    db1.v_SourceSystem1_sprt."go3_MAP_RUN_BY_SP"
FROM
    db1.v_SourceSystem1_sprt
)

,

Results as (
select
/*SourceSystem1PV*/
SourceSystem1PV.*,
/*SourceSystem1SQC*/
null as go2_SDQC_ID ,
null as go2_MAP_ITEM_KEY ,
null as go2_MAP_NAME ,
null as go2_MAP_ITEM_GEO_AREA_NAME ,
null as go2_MAP_REGION ,
null as go2_MAP_GEO_SCOPE_NAME ,
null as go2_MAP_ENTITY ,
null as go2_MAP_ITEM_PHASE_CODE ,
null as go2_MAP_TYPE ,
null as go2_MAP_ITEM_PV_STATUS_CODE ,
null as go2_MAP_RUN_BY_SP ,
null as go2_S_CONDUCTED_BY ,
null as go2_SP_NAME ,
null as go2_S_SP_NAME ,
null as go2_MAP_ITEM_SOURCE_DATA_TYPES ,
null as go2_SDQC_ACTUAL_FREQUENCY ,
null as go2_S_NO_OF_REC ,
null as go2_S_SAMPLE_SIZE ,
null as go2_S_NO_OF_MISSED_ADVERSE_EVENTS ,
null as go2_S_COMPLETION_DATE ,
null as go2_S_DEADLINE_DATE ,
null as go2_S_DUE_DATE ,
null as go2_MAP_ITEM_ACTUAL_START_DATE ,
null as go2_MAP_ITEM_PLANNED_END_DATE ,
null as go2_MAP_ITEM_ACTUAL_END_DATE,
null as "go3_MAP_ITEM_KEY",
null as "go3_MAP_NAME",
null as "go3_MAP_ITEM_GEO_AREA_NAME",
null as "go3_COMPLETION_DATE",
null as "go3_SP_NAME",
null as "go3_DUE_DATE",
null as "go3_MAP_ITEM_PV_STATUS_CODE",
null as "go3_MAP_ITEM_PHASE_CODE",
null as "go3_MAP_TYPE",
null as "go3_MAP_RUN_BY_SP",
--/SourceSystem1--

core.*

from
SourceSystem1PV left join core on core.country=SourceSystem1PV."go1_MAP_ITEM_GEO_AREA_NAME"
and MetricSystem=SourceSystem

UNION ALL
Select
MetricSystem,
MetricName,
null as go1_MAP_TYPE,
null as go1_MAP_ITEM_PHASE_CODE,
null as go1_MAP_ITEM_PV_STATUS_CODE,
null as go1_MAP_ITEM_ID,
null as go1_SP_NAME,
null as go1_MAP_ITEM_KEY,
null as go1_PRODUCT_NAME,
null as go1_MAP_ITEM_GEO_AREA_NAME,
null as go1_MAP_NAME,
null as go1_MAP_ITEM_ACTUAL_START_DATE,
null as go1_MAP_ITEM_INITIAL_APPROVE_DATE,
null as go1_MAP_ITEM_PLANNED_START_DATE,
null as go1_MAP_ITEM_INITIAL_APPROVER,
null as go1_MAP_CREATION_DATE,
null as go1_MAP_THERAPEUTIC_AREAS,
null as go1_MAP_RUN_BY_SP,
"go2_SDQC_ID",
"go2_MAP_ITEM_KEY",
"go2_MAP_NAME",
"go2_MAP_ITEM_GEO_AREA_NAME",
"go2_MAP_REGION",
"go2_MAP_GEO_SCOPE_NAME",
"go2_MAP_ENTITY",
"go2_MAP_ITEM_PHASE_CODE",
"go2_MAP_TYPE",
"go2_MAP_ITEM_PV_STATUS_CODE",
"go2_MAP_RUN_BY_SP",
"go2_S_CONDUCTED_BY",
"go2_SP_NAME",
"go2_S_SP_NAME",
"go2_MAP_ITEM_SOURCE_DATA_TYPES",
"go2_SDQC_ACTUAL_FREQUENCY",
"go2_S_NO_OF_REC",
"go2_S_SAMPLE_SIZE",
"go2_S_NO_OF_MISSED_ADVERSE_EVENTS",
"go2_S_COMPLETION_DATE",
"go2_S_DEADLINE_DATE",
"go2_S_DUE_DATE",
"go2_MAP_ITEM_ACTUAL_START_DATE",
"go2_MAP_ITEM_PLANNED_END_DATE",
"go2_MAP_ITEM_ACTUAL_END_DATE",
null as "go3_MAP_ITEM_KEY",
null as "go3_MAP_NAME",
null as "go3_MAP_ITEM_GEO_AREA_NAME",
null as "go3_COMPLETION_DATE",
null as "go3_SP_NAME",
null as "go3_DUE_DATE",
null as "go3_MAP_ITEM_PV_STATUS_CODE",
null as "go3_MAP_ITEM_PHASE_CODE",
null as "go3_MAP_TYPE",
null as "go3_MAP_RUN_BY_SP",

core.*
from
SourceSystem1SDQC left join core on core.country=SourceSystem1SDQC."go2_MAP_ITEM_GEO_AREA_NAME"
and MetricSystem=SourceSystem

UNION ALL
Select
MetricSystem,
MetricName,
null as go1_MAP_TYPE,
null as go1_MAP_ITEM_PHASE_CODE,
null as go1_MAP_ITEM_PV_STATUS_CODE,
null as go1_MAP_ITEM_ID,
null as go1_SP_NAME,
null as go1_MAP_ITEM_KEY,
null as go1_PRODUCT_NAME,
null as go1_MAP_ITEM_GEO_AREA_NAME,
null as go1_MAP_NAME,
null as go1_MAP_ITEM_ACTUAL_START_DATE,
null as go1_MAP_ITEM_INITIAL_APPROVE_DATE,
null as go1_MAP_ITEM_PLANNED_START_DATE,
null as go1_MAP_ITEM_INITIAL_APPROVER,
null as go1_MAP_CREATION_DATE,
null as go1_MAP_THERAPEUTIC_AREAS,
null as go1_MAP_RUN_BY_SP,
/*SourceSystem1SQC*/
null as go2_SDQC_ID ,
null as go2_MAP_ITEM_KEY ,
null as go2_MAP_NAME ,
null as go2_MAP_ITEM_GEO_AREA_NAME ,
null as go2_MAP_REGION ,
null as go2_MAP_GEO_SCOPE_NAME ,
null as go2_MAP_ENTITY ,
null as go2_MAP_ITEM_PHASE_CODE ,
null as go2_MAP_TYPE ,
null as go2_MAP_ITEM_PV_STATUS_CODE ,
null as go2_MAP_RUN_BY_SP ,
null as go2_S_CONDUCTED_BY ,
null as go2_SP_NAME ,
null as go2_S_SP_NAME ,
null as go2_MAP_ITEM_SOURCE_DATA_TYPES ,
null as go2_SDQC_ACTUAL_FREQUENCY ,
null as go2_S_NO_OF_REC ,
null as go2_S_SAMPLE_SIZE ,
null as go2_S_NO_OF_MISSED_ADVERSE_EVENTS ,
null as go2_S_COMPLETION_DATE ,
null as go2_S_DEADLINE_DATE ,
null as go2_S_DUE_DATE ,
null as go2_MAP_ITEM_ACTUAL_START_DATE ,
null as go2_MAP_ITEM_PLANNED_END_DATE ,
null as go2_MAP_ITEM_ACTUAL_END_DATE,
"go3_MAP_ITEM_KEY",
"go3_MAP_NAME",
"go3_MAP_ITEM_GEO_AREA_NAME",
"go3_COMPLETION_DATE",
"go3_SP_NAME",
"go3_DUE_DATE",
"go3_MAP_ITEM_PV_STATUS_CODE",
"go3_MAP_ITEM_PHASE_CODE",
"go3_MAP_TYPE",
"go3_MAP_RUN_BY_SP",

core.*

from
SourceSystem1SPRT left join core on core.country=SourceSystem1SPRT."go3_MAP_ITEM_GEO_AREA_NAME"
and MetricSystem=SourceSystem

)
,

select * from results
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5. Re: Dynamic sql creation

Rafal S Nov 22, 2019 8:26 AM (in response to Rafal S)

anyone ?
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6. Re: Dynamic sql creation

Rafal S Nov 25, 2019 5:10 PM (in response to Rafal S)

bump
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7. Re: Dynamic sql creation

John Thorton Nov 25, 2019 5:16 PM (in response to Rafal S)

Rafal S wrote:

bump
Please click on URL below & provide details as stated in #5 - #9 inclusive

How do I ask a question on the forums?
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