Query about Queries
As a relatively new user to Sybase I am hoping someone can point me in the
right direction. We are getting ready to go live with our database and I am
wondering what types of queries I should be running for system performance
purposes. If anyone has any suggestions they would be more than appreciated.
Thanks in advance,
...Query a Query
I have a result set in a query.
Is it possible to query this query?
(no specific SQL dialect, can it be done generically?)
PETROS GAVRIELIDES wrote:
> I have a result set in a query.
> Is it possible to query this query?
> (no specific SQL dialect, can it be done generically?)
There is a generic answer to your question: Yes, there is a construct
called a sub-query that allows you, in 1 SQL statement, to query from a
But, generically speaking, not all DB engines support this construct.
For instance, Firebird only added it just over a y...How to query a query...
I'm working on converting an Access DB that I created into an ASP.NET application (and attempting to learn ASP at the same time...). One of my queries was very complex and required running a different query first, and then working off of that one. Any suggestions on the best way to do this in ASP?
The following is a sample of code I'm using so you can see the type of data-binding I'm using. Thanks for the help!
myConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; " +"Data Source=" + Server.MapPath("/EquipmentCheckout.mdb"))
strS...Having trouble querying a query?
I'm trying to transition my reports from Access 2000 into Infomaker 7.0 but
I'm having trouble combining two queries together. In Access you had to
option of pulling tables or queries as your data, I don't see this option
in Infomaker, am I missing something. Thanks from a newbie...
IM doesn't have this feature, since it adheres to general Ansi SQL
standards. If you show me the Access query, maybe I can give you a
workaround. Are you querying an Access DB or a different DB, e.g. Oracle?
Terry Dykstra (TeamSybase)
Please state PB / OS / DB versions in your ...Query Within A Query?
I have a table that looks kinda like thisTag Info SignOutDate1 Hi 09/03/20051 Hi 09/02/20051 &n...Exacute query against query
I have a query which selects all dates from my database between 2 date values which is then entered into my dataset. I thin want to run through the dataset totalling the value of a certain column but only if dates match e.g.
27/02/2007 2.10 Tota...query runs fine in Query Analyser but not the Query Debugger
I'm running a query, actually its an insert that works when using the TSQL below.
However when I try to use the debugger to step through and using the exact same values as those below I get the following error:
[Microsoft][ODBC SQL Server Driver]Invalid character value for cast specification
Its Killing me because everything else works, but this. Can somebody help.
DECLARE @NoteID INT,-- NULL OUTPUT,
@Note_Description NVARCHAR(3000),-- = NULL,
@Date DateTime,-- = NULL OUTPUT,
@ByWho NVARCHAR(30),-- = NULL,
@FK_Action_Performed NVARCHAR(40),...SQLite query and AS in query
This is my code.
q := TSQLQuery.Create(nil);
q.SQLConnection := MainForm.sqlite1;
q.SQL.Text := sql;
And this is my SQL
select id as _id, name, note as description from notes
q.Fields.FieldName is id, it should be _id
q.Fields.FieldName is note, it should be description
Is this normal or am I missing something
This is frustrating. I can't work at all.
Edited by: grega loboda on Jun 4, 2013 1:40 AM
http://stackoverflow.com/question...Query Plan Query
We have a sql query that is causing a few issues in terms of
performance as the optimisor is choosing to table scan where
an index will certainly yield significant gains. As proven
when snapshotting the query and adding an index hint
Unfortunatley since the query is dynamically created by a
3rd party application, we are unable to influence this with
index hints and are dependant on the optimiser.
The table that is table scanning is partitioned (has also
hust been repartitioned to address a slight inbalance across
partitions) and has 7.6M records. It has been recently
r...Query and Sub-Queries
I have a SELECT statement that has two sub queries in it. The 'where'
clause in the main query filters a TRADE_DATE field, for example: ......
where TRADE_DT >= '2003/01/01' and TRADE_DT <= '2003/01/31'.
Since I only have one date field(TRADE_DATE), I want the sub-query to query
where TRADE_DT <= '2003/01/31'. But its not working. I have to hard code
the '2003/01/31'. Now I know I can make a dynamic view in VB, but an ideas
of how I can do it in SQL? Here's my statement:
select T.BROKER_SEQ_NO,B.BROKER_NAME,B.B...Query to Save Queries
Save SQL Statements in the Host SQL MENU???
I want to add items to the pencil menu in the Host SQL page. Eg. "Save SQL Query".
Could someone point me in the right direction on how to populate the pencil menus. Thanks in advance.
If your interested read on :
So the idea is to make the currently "empty" pencil menu contain a list of queries, hosts/DnnCommunity can click on & execute, rather than typing them in each time.
''in the page load of admin/portal/sql.ascx.vb ln: 57 I want to add this line of code
If Len(Request.Params(&quo...Query a query in linq
Hi, I have some code that gets some results:var GlobalTable = from p as db.table select p; Now I want to run a query in link on the results stored in GlobalTable. Whats the best way to do this? keepin' it real in the ATX.
Exactly the way you ran the first query:
var GlobalTableSubset = from gt as GlobalTable ...Query of Queried data
I am new to asp.net after working with coldfusion. I have created a datagrid from a query of a sql database. I am interested to know how can I create another datagrid which will process a query of the data in the original grid. So essentually it is a query of a query. Thank you
You want to filter on the result of the first query? The easiest way I can think of, is to put the data in a datatable, then use the select and dataview features of the datatable.
Hi,uusquintsYou can filter the datatable in the code-behind and bind the result to the 2nd datagird:...Querying a Queried result...
Hi, is there such a thing as querying a queried result?
Example, query 1 produces Result A. Result A's table is stored 'somewhere' to be queried by query 2 which produces Result B
If there is, could you kindly direct me to a website with the appropiate article on this topic?
Yes there is, querying a View is querying a query rewrite. Send me an email the address is in my profile I will send you a Views tutorial I wrote a while back and run a search for query results from View in your BOL(books online) for code samples. Hope this helps.