asked on

SQL rewrite

I have the SQl query below which list the stores

Whenever i get "All city types" in the citytypename fields , i DO NOT need to list the other rows for the
particular storelocationid

Result

71      8      0      All City Types      West      Dhanalakshmi store        All Cities      All States
71      8      1      Tier 2        West      Dhanalakshmi store        Bangalore      Karnataka
71      8      2      Tier 2        West      Dhanalakshmi store Ahmedabad      Gujarat

how i will rewrite my query for this?

SELECT  LL.StoreLocationID
       ,LC.[StoreID]
       ,ISNULL(LC.CityID,0) CityID
       ,ISNULL(C.CityTypeName,'All City Types') CityTypeName
       ,ISNULL(LL.RegionName,'All Regions') RegionName
       ,L.[Name] StoreName
       ,ISNULL(C.Name,'All Cities') AS CityName
       ,ISNULL(S.Name, 'All States') AS StateName
FROM [StoreCity] LC
		INNER JOIN [Store] L ON L.[StoreID] = LC.[StoreID] 
		INNER JOIN [StoreLocation] LL ON LL.StoreID=LC.StoreID
		LEFT OUTER JOIN [City] C ON LC.CityID = C.CityID
		LEFT OUTER JOIN [State] S ON C.StateID = S.StateID
		where StoreLocationID =  71

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OnALearningCurve

Hi PeteEngineer,

How about the code attached

HTH,

Mark.

SELECT  LL.StoreLocationID
       ,LC.[StoreID]
       ,ISNULL(LC.CityID,0) CityID
       ,ISNULL(C.CityTypeName,'All City Types') CityTypeName
       ,CASE( WHEN (C.CityTypeName IS NULL) THEN (ISNULL(LL.RegionName,'All Regions')) ELSE NULL END) RegionName
       ,CASE( WHEN (C.CityTypeName IS NULL) THEN (L.[Name]) ELSE NULL END) StoreName
       ,CASE( WHEN (C.CityTypeName IS NULL) THEN (ISNULL(C.Name,'All Cities')) ELSE NULL END) AS CityName
       ,CASE( WHEN (C.CityTypeName IS NULL) THEN (ISNULL(S.Name, 'All States')) ELSE NULL END) AS StateName
FROM [StoreCity] LC
		INNER JOIN [Store] L ON L.[StoreID] = LC.[StoreID] 
		INNER JOIN [StoreLocation] LL ON LL.StoreID=LC.StoreID
		LEFT OUTER JOIN [City] C ON LC.CityID = C.CityID
		LEFT OUTER JOIN [State] S ON C.StateID = S.StateID
		where StoreLocationID =  71

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Kevin Cross

You can try a NOT EXISTS. Let's start with an OR in single query. Other option might be to use UNION where you select just the 'all city types' rows and then join in those other cities where there does not exist an 'all city types' row for that store location ID.

Let me know how this works:

SELECT  LL.StoreLocationID
       ,LC.[StoreID]
       ,ISNULL(LC.CityID,0) CityID
       ,ISNULL(C.CityTypeName,'All City Types') CityTypeName
       ,ISNULL(LL.RegionName,'All Regions') RegionName
       ,L.[Name] StoreName
       ,ISNULL(C.Name,'All Cities') AS CityName
       ,ISNULL(S.Name, 'All States') AS StateName
FROM [StoreCity] LC
	INNER JOIN [Store] L ON L.[StoreID] = LC.[StoreID] 
	INNER JOIN [StoreLocation] LL ON LL.StoreID=LC.StoreID
	LEFT OUTER JOIN [City] C ON LC.CityID = C.CityID
	LEFT OUTER JOIN [State] S ON C.StateID = S.StateID
WHERE StoreLocationID =  71
AND (
   /* current row is 'All City Types' */
   C.CityTypeName IS NULL
   OR 
   /* current row is not 'All City Types', 
      but there does not exist another row that is. */
   NOT EXISTS (
      SELECT 1
	  FROM [StoreLocation] LL2 ON LL2
	  INNER JOIN [StoreCity] LC2 ON LC2.[StoreID] = LL2.[StoreID]
	  INNER JOIN [City] C2 ON C2.[CityID] = LC2.[CityID]
	  WHERE LL2.StoreLocationID = LL.StoreLocationID
	  AND C2.CityTypeName IS NULL
   )
)

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PeteEngineer

ASKER

:OnALearning…:

I am getting this error

Msg 156, Level 15, State 1, Line 5
Incorrect syntax near the keyword 'WHEN'.

PeteEngineer

ASKER

mwvisa1: I am getting the following error :

Msg 156, Level 15, State 1, Line 23
Incorrect syntax near the keyword 'ON'.

PeteEngineer

ASKER

I have remove the ON statement,so the query is working .....

but there is no change in the query results i posted above

Kevin Cross

Sorry, I started to type this with [City] table first, then thought it may not be needed and in my shifting around I did not get rid of an ON clause. Just delete it.

i.e., run like this:

SELECT  LL.StoreLocationID
       ,LC.[StoreID]
       ,ISNULL(LC.CityID,0) CityID
       ,ISNULL(C.CityTypeName,'All City Types') CityTypeName
       ,ISNULL(LL.RegionName,'All Regions') RegionName
       ,L.[Name] StoreName
       ,ISNULL(C.Name,'All Cities') AS CityName
       ,ISNULL(S.Name, 'All States') AS StateName
FROM [StoreCity] LC
	INNER JOIN [Store] L ON L.[StoreID] = LC.[StoreID] 
	INNER JOIN [StoreLocation] LL ON LL.StoreID=LC.StoreID
	LEFT OUTER JOIN [City] C ON LC.CityID = C.CityID
	LEFT OUTER JOIN [State] S ON C.StateID = S.StateID
WHERE StoreLocationID =  71
AND (
   /* current row is 'All City Types' */
   C.CityTypeName IS NULL
   OR 
   /* current row is not 'All City Types', 
      but there does not exist another row that is. */
   NOT EXISTS (
      SELECT 1
	  FROM [StoreLocation] LL2
	  INNER JOIN [StoreCity] LC2 ON LC2.[StoreID] = LL2.[StoreID]
	  INNER JOIN [City] C2 ON C2.[CityID] = LC2.[CityID]
	  WHERE LL2.StoreLocationID = LL.StoreLocationID
	  AND C2.CityTypeName IS NULL
   )
)

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ASKER CERTIFIED SOLUTION

Kevin Cross

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