I'm having trouble getting this query to display any results.
SELECT Evaluation_Table.*
FROM Evaluation_Table
WHERE (Evaluation_Table.Test_ID
In ([Forms]![Test Data]![Group_Test_IDs]));
The control, [Group_Test_IDs] is a textbox that contains a string of IDs. For example it just contains numbers separated by commas: 1,2,3,4,5.
While debugging, If I changed the query to look like this, it properly returns records:
SELECT Evaluation_Table.*
FROM Evaluation_Table
WHERE (Evaluation_Table.Test_ID
In (1,2,3,4,5));
I can't seem to find the proper syntax. SQL in Access can sometimes be weird.
I can't seem to find the proper syntax.
That's because there is none.
The IN selection cannot be dynamic; your only option is to rewrite the SQL via VBA.
Related
I have a query that used a field from a form as a parameter in a crosstab query and it worked fine, the contents of the field are like 2017-18 etc. But now I have 2 forms that run the same query and have used TempVars, I have dim/defined the TempVars in the VBA before the query launches and have used the following as a parameter in the query;
[Tempvars]![varFinDate]
But when the query runs I get the error message;
The expression is typed incorrectly, or is too complex to be
evaluated. For example, a numeric express may contain too many
complicated elements. Try simplifying the expression by assigns parts
of the express to variables.
I have used the same principle on many queries without issue.
A crosstab has to have the parameters predefined. Have you declared the parameters in the crosstab query?
If not you can set them in the Query editor by right click and select Parameters property in the designer.
I am trying to get the second value in field to populate a column in a query.
Example:
I was able to accomplish this using MS Access and the SQL statement looks like this:
SELECT stone_schedules.mach_equip_id,
stone_schedules.timeline,
IIf(InStr(1,Mid([timeline],InStr(1,[timeline],",")+1),",")=0,0,Mid(Mid([timeline],InStr(1,[timeline],",")+1),1,InStr(1,Mid([timeline],InStr(1,[timeline],",")+1),",")-1)) AS NextSchedEntry_id
FROM stone_schedules
WHERE (((stone_schedules.active)<>"0"));
The problem with running this in Access and not on the server is that it runs too slow and server side is able to run this a lot quicker. This is what I have so far server side in pgAdmin:
SELECT
schedules.mach_equip_id,
schedules.timeline,
--select function where I need help
FROM
stone.schedules
WHERE
schedules.active = true;
Thanks
Well I was able to find an answer that is easier than the solution from ms access and my guess is probably less expensive.
When values are separated like that and inside the curly braces, it is an array.
I was able to select the 2nd value of the array by using the following sql statement.
SELECT
schedules.mach_equip_id,
schedules.timeline,
schedules.timeline[2] -- using brackets made it possible to select the 2nd value
FROM
stone.schedules
WHERE
schedules.active = true;
That was easier than I thought it would be.
I'm sure I'm making some kind of rookie error here, but I have no idea what the problem is. I am trying to run a simple query on one table in a microsoft access database using the LIKE property to find records that have a certain text string in a particular field. More specifically, the table, called Catreqs, has a few fields, bib_num, MARC_336, MARC_337, and MARC_338. The MARC_336 field has a text string in it and I want a query that selects all the records for which that text string includes the characters "txt".
Here's my query:
SELECT [Catreqs].record_num, [Catreqs].MARC_336
FROM [Catreqs]
WHERE [Catreqs].MARC_336 Like '%txt%';
I should note that I created this query in MS Access design view and this is the query that was generated when I switched to SQL view. I am a little familiar with SQL and even less familiar with Access so this is actually my preferred way of dealing with it.
I've also tried using Like '*txt*' but that didn't return any results either. For reference, here is the entire text string these characters are in:
text txt rdacontent
Any suggestions thoughts on why this fails and how I can fix it?
Thanks!
In Access, for a string you must use the * character.
Check if [Catreqs] has rows where MARC_336 contains "txt".
This is the official documentation of Access:
https://support.office.com/en-us/article/Like-Operator-b2f7ef03-9085-4ffb-9829-eef18358e931?ui=it-IT&rs=en-001&ad=IT&omkt=en-001
When i write a select statement in vba to grab a column from a query its empty.
i have a query thats joined by multiple tables.
For example if I call select query.specialcolumn from query where query.id=5 I get a blank back. However, If I view it in the query table I see data for ID=5 with data.
Straight SQL in design mode also produces blanks. Only when I view the query as a whole, I can see data.
Any ideas?
Sounds like you used "query" as the name for your saved query. And query is a reserved word, see Problem names and reserved words in Access. It's hard predict when reserved words as object names will create problems. And I'm not confident that name is the problem here. But I would rule it out first before investigating anything else.
Enclose query in square brackets everywhere it's referenced in the SQL.
select [query].specialcolumn from [query] where [query].id=5
The square brackets will inform the db engine that query is a database object rather than the reserved word.
I have 150+ SQL queries in separate text files that I need to analyze (just the actual SQL code, not the data results) in order to identify all column names and table names used. Preferably with the number of times each column and table makes an appearance. Writing a brand new SQL parsing program is trickier than is seems, with nested SELECT statements and the like.
There has to be a program, or code out there that does this (or something close to this), but I have not found it.
I actually ended up using a tool called
SQL Pretty Printer. You can purchase a desktop version, but I just used the free online application. Just copy the query into the text box, set the Output to "List DB Object" and click the Format SQL button.
It work great using around 150 different (and complex) SQL queries.
How about using the Execution Plan report in MS SQLServer? You can save this to an xml file which can then be parsed.
You may want to looking to something like this:
JSqlParser
which uses JavaCC to parse and return the query string as an object graph. I've never used it, so I can't vouch for its quality.
If you're application needs to do it, and has access to a database that has the tables etc, you could run something like:
SELECT TOP 0 * FROM MY_TABLE
Using ADO.NET. This would give you a DataTable instance for which you could query the columns and their attributes.
Please go with antlr... Write a grammar n follow the steps..which is given in antlr site..eventually you will get AST(abstract syntax tree). For the given query... we can traverse through this and bring all table ,column which is present in the query..
In DB2 you can append your query with something such as the following, but 1 is the minimum you can specify; it will throw an error if you try to specify 0:
FETCH FIRST 1 ROW ONLY