I'm running this code:
SELECT hID
FROM logonsHistory
WHERE aIDs NOT LIKE '%''101''%' AND
CASE src
WHEN 0 THEN
uID IN(29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481)
END
I get this error:
Incorrect syntax near the keyword 'IN'
I have no idea what's wrong.
A CASE statement is not appropriate in this case. Just use a simple OR condition:
SELECT hID
FROM logonsHistory
WHERE aIDs NOT LIKE '%''101''%'
AND (
src <> 0 -- add a COALESCE here if src can be NULL
OR uID IN(29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481)
)
... which basically is the equivalent of only applying the uID filtering if src = 0, which is what you appeared to be trying to accomplish with your query.
It sounds like you don't have to use CASE please test this
SELECT hID
FROM logonsHistory
WHERE aIDs NOT LIKE '%''101''%'
AND ( (src = 0 --scr is 0 => must have uid in the list
AND UID IN (29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481))
OR src <> 0) --else src is not 0 and there is no additional condition
i have a doubt on your not like condition have you tested it alone?
Guess this is what you are looking for
WHERE aIDs NOT LIKE '%''101''%' or
(
src = 0
AND
uID IN(29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481
)
It looks like your statement is not formatted properly. you placed a condition rather than a value to set within "When 0 then ...... END
the uID IN(29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481) you have there is a condition and shouldn't have been there
The when part of a case statement should select a single value. what you are trying to do is to check for a condition.
Or if you are checking for uid in those values, you should do
case when src = 0 then
case when uID IN (29,41,42,45,49,50,57,73,83,107,166,349,356,367,375,376,416,471,472,473,474,481)
then 'It is a Client ID'
-- add another when or else part here if required
end
else 'Not a UID and not a Client ID'
end
I'm having a Sql code like as follows
Select a.ItemCode, a.ItemDesc
From fn_BOM_Material_Master('A', #AsOnDate, #RptDate, #BranchID, #CompID)a
Left Outer Join fn_INV_AsOnDate_Stock(#StockDate, #AsOnDate, #RptDate, #BranchID, #CompID, #Finyear)b
On a.ItemCode=b.ItemCode and b.WarehouseCode<>'WAP'
and a.BranchID=b.BranchID and a.CompID=b.COmpID
Where a.ItemNatureCode = 'F' and a.BranchID = #BranchID and a.CompID = #CompID
Group by a.ItemCode, a.ItemDesc
Having sum(b.CBQty)<=0
Here the problem is that im passing an "#ShowZeroStock" value as as bit if the "#ShowZeroStock" value is '1' then Having should not be validated or (i.e: All values from the table should be returned including zero)
So How to change the query based on passed bit value "#ShowZeroStock"
I can Use "If else " condition at the top and remove having in else part, but for a lengthy query i can't do the same.
Is this the logic you want?
Having sum(b.CBQty) <= 0 or #ShowZeroStock = 1
I am new to SQL, so if you could include in answer correct syntax (for PostgreSQL) that will be great.
I have two tables
table 1 "geo_temp", with columns [geo_type1] [geo_type2]....[geo_type6] [geo_typeR];
table 2 "geo_summary", with column [geo].
Here what I want to do,
CASE
WHEN (geo_type1 NOTNULL) THEN (geo = geo_type1)
WHEN (geo_type2 NOTNULL) THEN (geo = geo_type2)
...
ELSE (geo = geo_typeR)
Your help is much appreciated. Thanks.
Use the coalesce() function:
geo = coalesce(geo1, geo2, ...,geoR)
coalesce() returns the first non-null value found in the list, which is what your intention is.
As an update statement:
update geo_summary set
geo = (select coalesce(geo1, geo2, ...,geoR)
from geo_temp
where geo_temp.id = geo_summary.id)
I am assuming you want to use this in a WHERE or ON Clause.
You could do something like...
geo =
CASE
WHEN (geo_type1 is NOT NULL) THEN geo_type1
WHEN (geo_type2 is NOT NULL) THEN geo_type2
...
ELSE geo_typeR
END
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
Here is what I have:
SELECT uo.order_id, uo.order_total, uo.order_status,
(SELECT SUM(uop.price * uop.qty)
FROM uc_order_products uop
WHERE uo.order_id = uop.order_id
) AS products_subtotal,
(SELECT SUM(upr.amount)
FROM uc_payment_receipts upr
WHERE uo.order_id = upr.order_id
) AS payment_received,
(SELECT SUM(uoli.amount)
FROM uc_order_line_items uoli
WHERE uo.order_id = uoli.order_id
) AS line_item_subtotal
FROM uc_orders uo
WHERE uo.order_status NOT IN ("future", "canceled")
AND uo.uid = 4172;
The data comes out fine, except the NULL fields should be 0.
How can I return 0 for NULL in MySQL?
Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
You can use coalesce(column_name,0) instead of just column_name. The coalesce function returns the first non-NULL value in the list.
I should mention that per-row functions like this are usually problematic for scalability. If you think your database may get to be a decent size, it's often better to use extra columns and triggers to move the cost from the select to the insert/update.
This amortises the cost assuming your database is read more often than written (and most of them are).
None of the above answers were complete for me.
If your field is named field, so the selector should be the following one:
IFNULL(`field`,0) AS field
For example in a SELECT query:
SELECT IFNULL(`field`,0) AS field, `otherfield` FROM `mytable`
Hope this can help someone to not waste time.
You can try something like this
IFNULL(NULLIF(X, '' ), 0)
Attribute X is assumed to be empty if it is an empty String, so after that you can declare as a zero instead of last value. In another case, it would remain its original value.
Anyway, just to give another way to do that.
Yes IFNULL function will be working to achieve your desired result.
SELECT uo.order_id, uo.order_total, uo.order_status,
(SELECT IFNULL(SUM(uop.price * uop.qty),0)
FROM uc_order_products uop
WHERE uo.order_id = uop.order_id
) AS products_subtotal,
(SELECT IFNULL(SUM(upr.amount),0)
FROM uc_payment_receipts upr
WHERE uo.order_id = upr.order_id
) AS payment_received,
(SELECT IFNULL(SUM(uoli.amount),0)
FROM uc_order_line_items uoli
WHERE uo.order_id = uoli.order_id
) AS line_item_subtotal
FROM uc_orders uo
WHERE uo.order_status NOT IN ("future", "canceled")
AND uo.uid = 4172;
I've got a simple sql query that is trying to update a single row. The code came from some Linq-to-sql code (i used Profiler to grab it), but please don't worry about the source (L2S) ... that's irrelivant to the question.
Now, when i try and do an update with the where clause, I get 0 rows updated.
I then try and do a select with the same where clause. i get a single result back. Ok, so the data is there.
It's only when i turn off some of the where clause statements does the query finally work. I just don't get it :(
I can't really explain it. So I made a video showing this.
Please watch the video on YouTube here.
Can anyone help? It's really weird :(
Database is MS-SQL 2008.
-- UPDATE
The sql i'm trying to execute (after i've cleaned it up from L2S)..
update tblBoardPost
set IsSticky = 1
where IdBoardPost = 1278
and IdAddress = 212787
and Subject = N'ttreterte'
and Banner is null
and UniqueSubject = N'ttreterte5'
AND (NOT ([IsAnnouncement] = 1))
AND (NOT ([IsSticky] = 1))
AND (NOT ([IsLocked] = 1))
and IsVisible = 1
and IdUserModified = 1
AND [IdNewsArticle] IS NULL
AND [IdList] IS NULL
(note: yes, i know the NOT (blah = 1)) is weird, but that's L2S that made that.
Update 2:
The code in the video is being ran in a transaction/rollback trans. this means that if i do run one of those weird scenario's that works, the change works .. but the rollback undoes it .. so when i run it a 2nd time .. the original value has been returned to the db row.
Also, in the vid, the select query is not exactly the same as the update query .. because i've been trying so many permutations (with no luck) .. so by the time i made the vid .. i forgot to show the original code. That said, the same code in both the select statement and the update/where statement (when i copy/paste on my machine) reproduces the exact same probs :(
Update 2 :)
As per Lieven's request, here's the screenshot showing the code and then the results.
alt text http://img196.imageshack.us/img196/7111/lieven.png
I checked your video, and you should try the same SQL conditions, that you used to return one row in your select query, in your update query. The conditions in the two SQL statements in your video aren't the same, and I don't really care why; they're not apples to apples.
Just copy and paste the working WHERE clause over the non-working one.
In the video, your select goes like
and not IsAnnouncement = 1
wich gives entirely different results as in your update
and not (IsAnnouncement = 1)
It seems you are suffering from an operator precedence issue .
Edit
as the queries don't match in your video and although you say they have matched could you copy paste following script and let us know if or if they do not give you the same results? (I for one would have a hard time believing that the rows affected would differ)
begin tran
select *
from tblBoardPost
where
IdBoardPost = 1278
and IdAddress = 212787
and Subject = N'ttreterte'
and Banner is null
and UniqueSubject = N'ttreterte5'
AND (NOT ([IsAnnouncement] = 1))
AND (NOT ([IsSticky] = 1))
AND (NOT ([IsLocked] = 1))
and IsVisible = 1
and IdUserModified = 1
AND [IdNewsArticle] IS NULL
AND [IdList] IS NULL
update tblBoardPost
set IsSticky = 1
where
IdBoardPost = 1278
and IdAddress = 212787
and Subject = N'ttreterte'
and Banner is null
and UniqueSubject = N'ttreterte5'
AND (NOT ([IsAnnouncement] = 1))
AND (NOT ([IsSticky] = 1))
AND (NOT ([IsLocked] = 1))
and IsVisible = 1
and IdUserModified = 1
AND [IdNewsArticle] IS NULL
AND [IdList] IS NULL
rollback tran