I have a large SELECT INTO statement in a T-SQL script and currently I have two separate SELECT INTO's only differing by one OR condition in the WHERE clause. If my variable #cycle_nbr = 1 I have it doing one SELECT INTO, if #cycle_nbr = 0 I have it doing the other SELECT INTO.
I was wondering if there was a way to do this in one SELECT INTO with the #cylce_nbr condition in the WHERE itself.
Here is my WHERE clause:
WHERE ((a.gl_indicator = '0' OR a.gl_indicator = '1')
AND (a.gl_ins_type = '1' OR a.gl_ins_type = '3' )
AND rel_file_nbr is NULL
AND a.alpha_line NOT LIKE '%Z'
AND mis_process_dt >= #start_dt
and acctg_cyc_ym = #acctg_cyc)
OR (a.prem_sys_cd='T' AND acctg_cyc_ym = #acctg_cyc )
I only want this last condition OR (a.prem_sys_cd='T' AND acctg_cyc_ym = #acctg_cyc ) in there if #cycle_nbr = 1. Can I put an IF in there somewhere to make this work? Or do I have to stick with the IF(#cycle_nbr = 1) run this select ELSE run the other select?
Include your variable in the OR statement, i.e.,
OR (a.prem_sys_cd='T' AND acctg_cyc_ym = #acctg_cyc AND #cycle_nbr = 1)
Related
I'm trying to build a query that searches based on a series of different criteria, however sometimes you will only have to use some of the criteria.
I'd like to be able to do something like below where, to change the query I would only need to change the bits in bold at the top of the query, so as only to search by criteria1 and criteria2 without having to change any of the rest of the query. Thanks
Declare #criteria1 as varchar(1),#criteria2 as varchar(1),#criteria3 as varchar(1)
Set #criteria1 = 'a'
Set #criteria2 = 'b'
Set criteria3 = '*'
/*I don't want to change anything below this point*/
Select * from table where
a = #criteria1
b = #criteria2
c = #criteria3
You can use conditional logic. If you want to use *, then:
Select *
from table
where (a = #criteria1 or #criteria1 = '*') and
(b = #criteria2 or #criteria2 = '*') and
(c = #criteria3 or #criteria3 = '*');
More typically, NULL would be used for this purpose -- because it works for any type and is not confused with any other "real" value:
Select *
from table
where (a = #criteria1 or #criteria1 is null) and
(b = #criteria2 or #criteria2 is null) and
(c = #criteria3 or #criteria3 is null);
Finally, SQL Server is going to do a full table scan in general with such conditions (the mixing of and and or). You might want to construct the query dynamically if you want the query to use indexes. However, if you are using one-character columns, then the indexes would not be particularly selective, so that might not apply in this particular case.
I hope anyone can give any input to this problem. I have two exactly the same datasets, but one is larger than the other. Basically, I want to look to see if any variables in the smaller dataset (andrat_appen) have a certain value 'A'. If that is the case, I want to update the larger dataset ("andrat_APP_GENKORR", the exact same post, based on some ID-variables) with another value 'AG'.
If there are no values like 'A' in the variables in the smaller dataset, given the set if ID-variables, then nothing should happen to the same cells in the larger dataset.
Any suggestions on how to solve it?
UPDATE A
SET A.[ANDRAT_Vkod] = case when B.[ANDRAT_Vkod] = 'A' then 'AG' else A.[ANDRAT_Vkod] end,
A.[ANDRAT_timlon] = case when B.[ANDRAT_timlon] = 'A' then 'AG' else [ANDRAT_timlon] end
FROM [dbo].[andrat_APP_GENKORR] A
LEFT JOIN (SELECT EnhetsId, pnr, Etikett FROM [dbo].[andrat_appen]) B
ON A.EnhetsId = B.EnhetsId AND A.pnr = B.pnr AND A.Etikett = B.Etikett
Solved it! The solution is:
UPDATE A
SET A.[ANDRAT_Vkod] = (case when B.[ANDRAT_Vkod] = 'A' then 'AG' else A.[ANDRAT_Vkod] end),
A.[ANDRAT_timlon] = (case when B.[ANDRAT_timlon] = 'A' then 'AG' else A.[ANDRAT_timlon] end)
FROM [dbo].[andrat_APP_GENKORR] A
LEFT JOIN [dbo].[andrat_appen]) B
ON A.EnhetsId = B.EnhetsId AND A.pnr = B.pnr AND A.Etikett = B.Etikett
I need to be able to do an IF ELSE in the having clause of a select statement. Here is an excerpt of what I am trying to do:
HAVING
IF #Vendor IS NOT NULL
THEN (COUNT(Iron_1.SN) > 0) AND [User].UserIdentifier = #Vendor AND Location_1.LocationName = #LocationName
ELSE
(COUNT(Iron_1.SN) > 0) AND Location_1.LocationName = #LocationName
I want certain filters based on if the user provided a value for a query parameter or not.
Try this instead
HAVING COUNT(Iron_1.SN) > 0 AND Location_1.LocationName = #LocationName AND
(#Vendor IS NULL OR (#Vendor IS NOT NULL AND [User].UserIdentifier = #Vendor))
or this slightly simplier version
HAVING COUNT(Iron_1.SN) > 0 AND Location_1.LocationName = #LocationName AND
(#Vendor IS NULL OR [User].UserIdentifier = #Vendor)
try the two and go for the one you like the best and works
I have a big stored procedure, and basically I want to select all values (including null) if my variable #DimBrowserId is set to 0. I am using a case statement, however this is only catching values that actually have something and ignoring the NULL valued fields. Because I am using the = clause in the WHERE I cannot do IS NULL. I do not want to have to write 2 IF statements because the stored procedure would then be enormous, so I want to know how to get null values as well. Here is my code:
SELECT
DATEPART(yy, DATEADD(mi, #Mdelta, d.DimDateValue)),
DisableCount = COUNT(*)
FROM
dbo.FactDisable AS f
JOIN
dbo.DimDate AS d ON f.DimDateId = d.DimDateId
JOIN
dbo.DimDevice AS v ON f.DimDeviceId = v.DimDeviceId
WHERE
d.DimDateValue >= #StartDateGMT
AND d.DimDateValue <= #EndDateGMT
AND f.IsTest = #IncludeTest
AND f.DimProductId = #DimProductId
AND v.DimBrowserId = CASE
WHEN #DimBrowserId = 0 THEN v.DimBrowserId
ELSE #DimBrowserId
END
GROUP BY
DATEPART(yy, DATEADD(mi, #Mdelta, d.DimDateValue))
The code is near the CASE clause.
Thanks
Change that line to be
AND (#DimBrowserID = 0 OR #DimBrowserID = v.DimBrowserId)
If #DimBroserID is 0 then no filtering will be applied for this line.
Use ISNULL:
SELECT DATEPART(yy,DATEADD(mi,#Mdelta,d.DimDateValue)),
DisableCount=COUNT(*)
FROM dbo.FactDisable AS f
JOIN dbo.DimDate AS d ON f.DimDateId = d.DimDateId
JOIN dbo.DimDevice AS v ON f.DimDeviceId = v.DimDeviceId
WHERE d.DimDateValue >= #StartDateGMT AND d.DimDateValue <= #EndDateGMT
AND f.IsTest = #IncludeTest AND f.DimProductId = #DimProductId
AND v.DimBrowserId = CASE WHEN ISNULL(#DimBrowserId,0) = 0 THEN v.DimBrowserId ELSE #DimBrowserId END
GROUP BY DATEPART(yy,DATEADD(mi,#Mdelta,d.DimDateValue))
CASE WHEN COALESCE(#MightBeNull, 0) = 0 THEN ZeroResult ...
will be treated as zero if #MightBeNull is null, and whatever #MightBeNull is if it's not null.
Assuming null means any browser, a better data model for this scenario might be to set an ID that identifies any browser, instead of setting it to null.
You probably know what you are running into is NULL does not equal NULL in a comparison.
Assuming you don't have control of the data model to fix that, one option would be to coalesce your NULL values to an unused id.
The resulting WHERE clause would look like this, assuming -1 is the unused value you choose.
AND COALESCE(v.DimBrowserId, -1) = CASE WHEN #DimBrowserId = 0 THEN COALESCE(v.DimBrowserId, -1) ELSE #DimBrowserId END
#HistoryMSBType => This is a variable which can contain any varchar.
Depending upon it's value, i need to have different type of where clause.
How can I achieve this ?
SELECT * FROM stageTable map
WHERE id = 1
CASE #HistoryMSBType
WHEN 'Utilization Other' THEN
AND map.ColumnID = 4
WHEN 'Cost Other' THEN
AND map.ColumnID = 6
ELSE
AND map.ColumnName = #HistoryMSBType
END
SELECT *
FROM stageTable map
WHERE id = 1
AND (
(#HistoryMSBType = 'Utilization Other' AND map.ColumnID = 4)
OR
(#HistoryMSBType = 'Cost Other' AND map.ColumnID = 6)
OR
(isnull(#HistoryMSBType,'') NOT IN ('Utilization Other','Cost Other')
AND map.ColumnName = #HistoryMSBType)
)
You need the ISNULL to make it match the CASE-ELSE exactly, but it won't matter if it can never be null.