Me again, sorry.
Trying to get all the data between two dates in my Access Database. The data type for the column is "Date/Time" which I believe is correct.
SELECT *
FROM SaleProperty
WHERE MarketDate BETWEEN '01/05/2013' AND '30/06/2013';
When I use this, I am told that there is a data mismatch and the query does not work. Sorry again for what is probably a very basic question but I have no idea what I am doing wrong.
Cheers again!
Access (Jet) uses # to identify a date literal. Try this:
SELECT *
FROM SaleProperty
WHERE MarketDate BETWEEN #01/05/2013# AND #30/06/2013#;
Related
Just learning SQL and I've searched many options about converting a DateTime into a Date, and I do not want current date. It's a super simple query from this website: https://sqlzoo.net/wiki/Guest_House_Assessment_Easy
SELECT booking_date, nights
FROM booking
WHERE guest_id=1183
But the output is with the timestamp and I just want the date. I've searched so many forums and tried all their suggestions, including this:
SELECT CONVERT(varchar(10), <col>, 101)
So I've done:
SELECT CONVERT(varchar(10), booking_date,101), nights
FROM booking
WHERE guest_id=1183
But I'm getting syntax errors. This is probably so simple and you'll all think me an idiot, but I'd greatly appreciate help. It's driving me nuts.
When I fiddled about at your sqlzoo link I got the error
execute command denied to user 'scott'#'localhost' for routine 'gisq.to_date'`.
When I googled gisq.to_date I got this link https://sqlzoo.net/wiki/Format_a_date_and_time
Which has examples of how this dialect represents dates. See if you can work it out. Something like this:
SELECT date_format(booking_date,'%d/%m/%Y')
FROM booking
You didn't post the error in your question which is a big mistake. When you get an error message, you actually have something to work from.
It is also very important to note that the query above returns a string, not a date. It's only good for display, not for date arithmetic
TBH that seems like a terrible site to learn on as it gives no clues about the dialect. it looks like Oracle but to_date and trunc don't work.
The use of convert() suggests that you think you are uinsg SQL Server. If you only want the date component of a date/time data type, then you can use:
SELECT CONVERT(DATE, booking_date), nights
FROM booking
WHERE guest_id = 1183;
The syntax error suggests that you are not using SQL Server.
CONVERT() is bespoke syntax for SQL Server. Examples of similar functionality in other databases are:
DATE(booking_date)
TRUNC(booking_date)
DATE_TRUNC('day', booking_date)
In addition, what you see also depends on the user-interface.
In your case, the data is being stored as a date with no time component, but the UI is showing the time. For that, you want to convert to a string. That site uses MariaDB -- which is really a flavor of MySQL-- and you would use:
DATE_FORMAT(booking_date, '%Y-%m-%d')
Alright so I understand the point of the HAVING clause. I am having an issue and I am wondering if I can solve this the way I want to.
I want to execute one query using ADODB.Recordset and then use the Filter function to sift through the data set.
The problem is the query at the moment which looks like this:
SELECT tblMT.Folder, tblMT.MTDATE, tblMT.Cust, Sum(tblMT.Hours)
FROM tblMT
GROUP BY tblMT.Folder, tblMT.MTDATE, tblMT.Cust
HAVING tblMT.Cust LIKE "TEST*" AND Min(tblMT.MTDATE)>=Date()-30 AND MAX(tblMT.MTDATE)<=Date()
ORDER BY tblMT.TheDATE DESC;
So the above works as expected.... however I want to be able to use the tblMT.Cust as the filter without having to keep re querying the database. If I remove it I get a:
Data type mismatch in criteria expression.
Is what I am trying to do possible? If someone can point me in the right direction here would be great.
Ok... the type mismatch is caused because either tblmt.mtdate isn't a date field or tblmt.hours isn't a number field AND you have data that either isn't a date or isn't a number when the customer isn't like 'TEST*'. Or, for some customers, you have a NULL in mt.date and null can't be compared with >=. you'd still get the error if you said where tblMt.cust not like "TEST*" too.
Problem is likely with the data or your expectation and you need to handle it.
What data types are tblMT.hours and tblMt.MtDate?
straight forward question, but interesting enought, I didn't find anything. Probably I'm searching for the wrong keywords:
We have 2 Databases, one Oracle, one SQL, connected via Links.
I'd like to check, if some data is in the Oracle-Part, but not in the SQL one.
Selecting it from the PLSQLDev is pretty straightforward:
SELECT * from Core.Event#Link
But as soon as I try to select specific fields like :
SELECT Id from Core.Event#Link
It tells me the qualifier is invalid.
I tried all shennanigans like alias select:
SELECT ie.Id from Core.Event#Link ie
But it keeps telling me the qualifier is invalid.
Is there a special syntax I have to keep in mind?
Thanks in advance and a good weekend.
Matthias
I am sure this is as simple as a question can get but I have been stumped on it so figured that I would ask in hope of a quick response. Using an OLEDB connection I want to do a select statement but for the table I am selecting from, a table member also has to be there too which seems to be messing up my results.
Normally I would write to get the column "col1":
SELECT lib1.table.col1 FROM lib1.table
For the table I need the information from, the table has a "submember". From what I have gathered the syntax is something like this:
SELECT lib1.table(submember).col1 FROM lib1.table(submember)
The problem is that the results are giving me every column within the table, not just my "col1" data. I hope that this is well explained for what I am looking for. Thanks ahead of time for anyone who helps.
You should be able to create an ALIAS in QTEMP:
CREATE ALIAS QTEMP.TABLE FOR LIB1.TABLE (SUBMEMBER)
And then query through the temporarily created alias:
SELECT COL1 FROM QTEMP.TABLE
It will be automatically removed when your connection ends.
create alias library.aliasname for library.table(member)
Then do the select on the alias
I'm building an abstract gem. i need a sql query that looks like this
SELECT * FROM my_table WHERE * LIKE '%my_search%'
is that possible?
edit:
I don't care about querys performance because it's a feature function of a admin panel, which is used once a month. I also don't know what columns the table has because it's so abstract. Sure i could use some rails ActiveRecord functions to find all the columns but i hoped to avoid adding this logic and just using the *. It's going to be a gem, and i can't know what db is going to be used with it. Maybe there is a sexy rails function that helps me out here.
As I understand the question, basically you are trying to build a sql statement which should check for a condition across all columns in that table. A dirty hack, but this generates the required Sql.
condition_string = MyTable.column_names.join(' LIKE ? OR ')
MyTable.all(:conditions => [condition_string, '%my_search%'])
However, this is not tested. This might work.
* LIKE '...' isn't valid according to the SQL standards, and not supported by any RDBMS I'm aware of. You could try using a function like CONCAT to make the left argument of LIKE, though performance won't be good. As for SELECT *, it's generally something to be avoided.
No, SQL does not support that syntax.
To search all columns you need to use procedures or dynamic SQL. Here's another SO question which may help:
SQL: search for a string in every varchar column in a database
EDIT: Sorry, the question I linked to is looking for a field name, not the data, but it might help you write some dynamically SQL to build the query you need.
You didn't say which database you are using, as there might be a vendor specific solution.
Its only an Idea, but i think it worth testing!
It depends on your DB you can get all Columns of a table, in MSSQL for example you can use somethink like:
select name from syscolumns where id=object_id('Tablename')
Under Oracle guess its like:
select column_name from USER_TAB_COLUMNS where TABLE_NAME = 'Tablename'
and then you will have to go through these columns usign a procedure and maby a cursor so you can check for each Column if the data your searching for is in there:
if ((select count(*) from Tablename where Colname = 'searchingdata') > 0)
then keep the results in a separated table(ColnameWhereFound, RecNrWhereFound).
The matter of Datatye may be an Issue if you try to compare strings with numbers, but if you notice for instance under SQL-Server the syscolumns table contains a column called "usertype" which contains a number seems to refer to the Datatype stored in the Columne, like 2 means string and 7 means int, and 2 means smallint, guess Oracle would have something similar too.
Hope this helps.