I'm new to SQL (have only been in my position for a few weeks with no prior experience) so please excuse me if this is an obvious question!
Context
I've got two tables - table 1 which contains two images (for this instance we'll call them 'Yes' and 'No' - both saved as varbinary(max)) and table 2 that contains all my other data.
I've created a new column in table 2 called Image that I want to populate with one of the images based on the value in another column ('Drivable') in table 2. The column 'Drivable' will either contain the values 'Yes', 'No' or NULL.
Question
I think I need to use a case statement but not entirely sure how to go about it.
Can anyone help?
Thanks in advance for any reply - if you need any more information then please let me know.
:)
I managed to solve the problem using the below:
SELECT
T.ClaimId
,I1.[Photo] as DriveableImage
FROM
Table1 as T
LEFT OUTER JOIN
Table2 as I1
ON
I1.ImageGroup = C.Drivable
Related
I'm trying to build a report where i try to filter values from a table by their close dates (datetime). So far i've created a parameter called #closeDateParam and i want users to select between 2 options, one of them refers to NULL and other one refers to NOT NULL.
my sql is something like this,
select * from TABLE1 where TABLE1.CLOSED_DATE = #closeDateParam
and i've specified values for this parameter in parameter properties as
(Null) and (NOT Null)
but it seems it does not work for me.
I'd be grateful for any help since i'm a newbie at using ReportBuilder. Thanks for helping!
first off, noob alert! :))
I need to construct a query that runs on many tables. The tables vary on name just on the last digits as per client code. The thing is, the values that change aren't sequential so looping as in i=1,2,3,... does not work. A possible solution would be to have those values on a given field on an other table.
Here is the code for the first two clients 015 and 061. The leading zero(s) must are essential.
SELECT LnMov2017015.CConta, RsMov2017015.DR, RsMov2017015.NInt, "015" AS CodCli
FROM LnMov2017015 INNER JOIN RsMov2017015 ON LnMov2017015.NReg = RsMov2017015.NReg
WHERE (((LnMov2017015.CConta)="6" And (LnMov2017015.CConta)="7") AND ((RsMov2017015.DR)=9999))
UNION SELECT LnMov2017061.CConta, RsMov2017061.DR, RsMov2017061.NInt, "061" AS CodCli
FROM LnMov2017061 INNER JOIN RsMov2017061 ON LnMov2017061.NReg = RsMov2017061.NReg
WHERE (((LnMov2017061.CConta)="6" And (LnMov2017061.CConta)="7") AND ((RsMov2017061.DR)=9999))
...
So for the first SELECT the table Name is LnMov2017015, the ending 015 being the value, the client code, that changes from table to table e.g. in the second SELECT the table name is LnMov2017061 (061) being what distinguishes the table.
For each client code there are two tables e.g. LnMov2017015 and RsMov2017015 (LnMov2017061 and RsMov2017061 for the second set client shown).
Is there a way that I can build the SQL, based upon the example SQL above?
Does anyone have an idea for a solution? :)
Apparently it is possible to build a query object to read data in another db without establishing table link. Just tested and to my surprise it works. Example:
SELECT * FROM [SoilsAgg] IN "C:\Users\Owner\June\DOT\Lab\Editing\ConstructionData.accdb";
I was already using this structure in VBA to execute DELETE and UPDATE action statements.
Solution found :)
Thank you all for your input.
Instead of linking 100 tables (password protected), I'll access them with SLQ
FROM Table2 IN '' ';database=C:\db\db2.mdb;PWD=mypwd'
And merge them all with a query, before any other thing!
My problem is that I would like to make an append query in Ms-Access 2010. I tried to realize it in query designer, but it throws an error:
Type mismatch in expression
See the generated code below:
INSERT INTO Yield ( ProcessName, Sor, Lot,
ProcessCode, Outgoing, DefectReason, DefectQty, ModifyQty )
SELECT Process.[ProcessName], Sor.[Sor], Qty.[Lot], Qty.[ProcessCode],
Qty.[Outgoing Date], Qty.[Defect Reason], Qty.[Defect Qty], Qty.[Modify_Qty]
FROM (Sor INNER JOIN ProcessCode ON Sor.[SorID] = ProcessCode.[SorID])
INNER JOIN (Process INNER JOIN Qty ON Process.[ProcessID] = Qty.[ProcessID])
ON ProcessCode.[ProcessID] = Process.[ProcessID];
The tables and the attributes are all existing. The ID numbers are indexes, the Quantities are numerical, the 'ProcessName', 'Sor', 'Lot', 'ProcessCode', 'DefectReason' attributes are strings.
What could be the problem?
Thanks in advance.
Looks ok. The best advice is divide it in smaller pieces.
http://importblogkit.com/2015/05/how-do-you-eat-an-elephant/ .
Try this:
Remove the insert part. Just try the select to make sure the join are working properly. If this fail the problem is on the join fields
Then, Put the insert again, but instead of putting table fields from the SELECT use default values. '' for strings and 0 for numeric and put the right alias for column name. That way you make sure your data is bringing the right data type. If this fail then one of the field isnt really a string or a number. Like gustav suggest probably a DATE
If that work then try to put one table field each time until you find the one causing the problem. Maybe one field doesnt support null or is receiving a bigger value than supported.
The problem was that the Yield table did not have the listed attributes. I thought that if some of the listed output attributes are not included in the output table, Access automatically creates the missing new attributes. I was wrong. The output table has to contain the attributes (rows), new attributes cannot be inserted into it this way.
I need to create a query for updating a column in a table with values taken from another table and matching a field.
These are the 2 tables:
tblMain
ID Autonumbering
Key Text
Stat1 Integer
tblStat1
ID Autonumbering
Key Text
Freq Integer
I want to UPDATE the tblMain.Stat1 column with tblStat1.Freq value on each record in which tblMain.Key = tblStat1.Key.
I tried this syntax (found somewhere as an example)
UPDATE tblMain
SET tblMain.Stat1 = tblStat1.Freq
WHERE tblMain.Key = tblStat1.Key;
This doesn't work and returns an error on the 2nd row.
After some trials I found that the correct syntax (built with the Access query generator) is this:
UPDATE (tblMaibn INNER JOIN tblStat1 ON tblMain.Key = tblStat1.Key)
SET tblMain.Stat1 = tblStat1.Freq;
In this 2nd syntax, there is no trace of the WHERE condition.
Can someone help me to understand what's wrong with the 1st syntax.
Since I'm building a new table (the join), how can it work on tblMain?
As I said, I found the wrong syntax as an example of UPDATE statement.
Thank you in advance.
Bye,
Ivano
What is happening in your first query on the 2nd row, is that Access isn't aware of what tblStat1 represents in your query.
The reason your 2nd query is working is because it uses an inner join on the relevant key. In order for SQL to be aware of what record in tblMain relates to which record in tblStat1, you need to use a join.
You can see in the generated code that it is updating your desired table, but joining onto the second table. The where condition is redundant as you're updating every record.
In 1st syntax, you can change:
UPDATE tblMain
SET tblMain.Stat1 = (SELECT Freq
FROM tblStat1
WHERE tblMain.Key = tblStat1.Key)
I have a table called Company with a single column CompanyNames.
I have 17 company names in this column as:
Bahria Town Projacs/TPMS Habib Rafique PCA Wilsons MLDB All Orient
Extreme Engineering Prime Engineering Method Rousing co Atlas Pakistan
Bemsol EDL Deep Well Emaad In Situ
Now I want to insert an empty row at the top of these company names.
Can you guys please help me write sql-query which will solve my problem?
Thanks.
insert into Company (CompanyName)
values ('')
create another table with Columns ---CompanyName and row number
update Company1 set id=null
WHERE id % 2 = 1;
update Company2 set id=null
WHERE id % 2 != 1;
using even odd values to set null
May be this will help if u got what i am saying.
What is the motivation behind wanting have an empty row. Looks to me like it is an attempt to solve problem at a different area in data store. I had experience of being asked such question at work. Like, to show an empty value in Select element on HTML page.
Please tell what is the actual problem you are trying solve.