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How can I write this query?
Posted on 2014-03-31
Here's my stored procedure thus far:
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.work
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
The result is a recordset that you see documented in the attached spreadsheet.
My challenge is that I have to restrict my recordset to those facilities that the app is assigned to. You find that data in the ptl_AppEntity table and my attempts to incorporate that into the above query looks like this:
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
ae.entityid as ApprovedEntityID,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.work
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
INNER JOIN ptl_AppEntity ae on ae.entityid = cer.entityid
where ae.appid=42 order by shortname
The query is sound, as far as it not throwing any errors, but it's a problem in that the resulting recordset doesn't include ALL of my Workqueue Types. Again, please refer to the attached spreadsheet and you'll see what I have with the first query, the results I'm getting with the second query as well as the results I need to get with the query that has yet to be written - and this is the query that I'm hoping will be proposed as a result of my appeal to the ninjas.
What say you?
sample-data.xlsx
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.work
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
The result is a recordset that you see documented in the attached spreadsheet.
My challenge is that I have to restrict my recordset to those facilities that the app is assigned to. You find that data in the ptl_AppEntity table and my attempts to incorporate that into the above query looks like this:
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
ae.entityid as ApprovedEntityID,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.work
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
INNER JOIN ptl_AppEntity ae on ae.entityid = cer.entityid
where ae.appid=42 order by shortname
The query is sound, as far as it not throwing any errors, but it's a problem in that the resulting recordset doesn't include ALL of my Workqueue Types. Again, please refer to the attached spreadsheet and you'll see what I have with the first query, the results I'm getting with the second query as well as the results I need to get with the query that has yet to be written - and this is the query that I'm hoping will be proposed as a result of my appeal to the ninjas.
What say you?
sample-data.xlsx
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10 Comments
"...problem in that the resulting recordset doesn't include ALL of my Workqueue Types."
try run it without "where ae.appid=42" to see if this is where is restrictioned or switch the INNER JOIN to a LEFT JOIN
try run it without "where ae.appid=42" to see if this is where is restrictioned or switch the INNER JOIN to a LEFT JOIN
Active today
The "restriction" is definitely occurring as a result of the "where ae.appid=42" dynamic. I get rid of that and everything looks wonderful. Thing is, I have to have that in place. What do you think?
Active today
..and when I switch the INNER JOIN to a LEFT JOIN, there's no difference in the number of rows I get, let alone an exhaustive listing of my Workqueue Types. So, I'm considering restructuring my tables and adding the WorkqueueTypeID to the WorkqueueEntity table, just so I don't have to fool with a JOIN and risk not being able to see the data displayed like I need it to be.
Active today
Tried restructuring the table and to no avail.
Hoping somebody can show me how to structure a query where I can get all of my Workqueue Types listed regardless if they're in the Workqueue Entity table.
Hoping somebody can show me how to structure a query where I can get all of my Workqueue Types listed regardless if they're in the Workqueue Entity table.
Active today
Change your WHERE condition to ON condition and change the INNER JOIN to LEFT JOIN.
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
ae.entityid as ApprovedEntityID,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.workqueuetypeid
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
LEFT JOIN ptl_AppEntity ae on ae.entityid = cer.entityid
ON ae.appid=42 order by shortname
Active today
Sharath - I'm getting an error that says "Incorrect syntax near the keyword "ON."
What did I miss. I copied and pasted your code verbatim.
What did I miss. I copied and pasted your code verbatim.
Active today
Fixed it
SELECT wt.shortname, wt.workqueuetypeid, wr.workqueueroleid, wr.defaultname, wr.sortorder,
cer.workqueueentityid, cer.workqueueroleid, cer.overridename, cer.updatedate, cer.updateuserid, cer.entityid,
u.displayname username,
ae.entityid as ApprovedEntityID,
en.shortname as EntityName from
cer_WorkqueueType wt LEFT OUTER JOIN cer_WorkqueueRole wr on wt.workqueuetypeid=wr.workqueuetypeid
LEFT OUTER JOIN cer_WorkqueueEntity cer on cer.workqueueroleid = wr.workqueueroleid
LEFT OUTER JOIN ptl_Entity en on en.entityid = cer.entityid
LEFT OUTER JOIN ptl_user u on cer.updateuserid = u.userid
LEFT JOIN ptl_AppEntity ae on ae.entityid = cer.entityid
And ae.appid=42 order by shortname
Active today
That did it! Could you please explain to me WHY it worked. I want to learn and not just copy and paste. Prior to your counsel, no matter what I did, I couldn't avoid a situation where my recordset was being limited by a collection of relationships that I'm not even sure I could explain back to you. Bottom line: The moment I introduced the appid, the left outer joins that seemed to be functioning beforehand were rendered a moot point. You changed that by reconfiguring the WHERE clause. Why did that work? What did you do?
Active 3 days ago
You changed that by reconfiguring the WHERE clause. Why did that work? What did you do?
Actually no. The LEFT JOIN was "reconfigured". By adding a condition to a WHERE clause on a table (other than IS NULL) involved in an OUTER JOIN you are in effect converting the OUTER JOIN to an INNER JOIN.
No points please.
Actually no. The LEFT JOIN was "reconfigured". By adding a condition to a WHERE clause on a table (other than IS NULL) involved in an OUTER JOIN you are in effect converting the OUTER JOIN to an INNER JOIN.
No points please.
Active today
my attempt at "why"
by using "where ae.appid=42 ..." you are asking for that condition to be true on ALL rows
by moving "ae.appid=42" to a join condition you are asking for rows in ptl_AppEntity that meet that condition to be joined to cer_WorkqueueType, and due to the left join that will allow all cer_WorkqueueType records to be returned.
also no points please.
by using "where ae.appid=42 ..." you are asking for that condition to be true on ALL rows
by moving "ae.appid=42" to a join condition you are asking for rows in ptl_AppEntity that meet that condition to be joined to cer_WorkqueueType, and due to the left join that will allow all cer_WorkqueueType records to be returned.
also no points please.
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