Accessing select result in an SQL query

I would like to know if anyone has a simple solution to this
problem.
I have a database with a table in it called events; the table
has five fields: event_id, game_type_id, game_venue_id, game_day,
and game_time.
I would like to build a form that selects records in the
table successively, based on the previous input. That is, once the
user has selected the game_type, I'd like to show the user the
game_venue for all the entries in the events table where
game_type_id is equal to what the user selected and allow the user
to select one. Then once the user has selected the game_type and
game_venue, I'd like to show the user all the records in events
that match the user's first two selections. Ditto for game_time. At
the end of this, a unique record will have been determined.
Some combinations of game_type, game_venue, game_day and
game_time don't exist, so I can't just let the user indicate freely
what they want.
I suppose I could do it with multiple forms, each with it's
own submit, but that's kind of clumsy. Is there some more elegant
way?

You can't refer to a pl/sql package constant in a sql statement.
Create a function that returns the constant value and then refer to the function in a sql statement.

Similar Messages

Result of an SQL query as a Column name of another query

Hi Friends,
Can we use a result of a SQL Query as a column name of another table to retrieve data. If so please help me.
For eg :
I have a table where is store numbers;
select col1 from table1 where col1='5';
and i have another table where .. this value of col is a column name..
select ( select col1 from table1 where col1='5') from table2;
Thanks in advance.

Hi,
ORAFLEX wrote:
Hi Friends,
Can we use a result of a SQL Query as a column name of another table to retrieve data. If so please help me.
For eg :
I have a table where is store numbers;
select col1 from table1 where col1='5';
and i have another table where .. this value of col is a column name..
select ( select col1 from table1 where col1='5') from table2;
Thanks in advance.Do you really mean that?
select col1 from table1 where col1='5';That query will always return either '5' or nothing. Whatever you're trying to accomplish with that, you can do with an EXISTS query.
Perhaps you meant to reference two different columns in that query:
select col1 from table1 where col2='5';In that case, sorry, no, you can't do that without resorting to dynamic SQL.
If the same column is used throughout the query (but could change every time you run the query), then the dynamic SQL might be pretty easy. In SQL*Plus, for example, you could use substitution variables, defined in another query at run-time.
If there are only a few possible values that the sub-query could possibly return, and you know what they all are, then you can fake a dynamic query like this:
SELECT     CASE     ( SELECT col1
            FROM       table1
            WHERE       col2     = '5'
          WHEN 'BONUS'     THEN bonus
          WHEN 'COMM'     THEN comm
          WHEN 'SAL'     THEN sal
     END     AS col1
FROM     table2
;Sorry to give such a vague answer, but it's the best I can do with the information I have.
It would help if you posted a little sample data (CREATE TABLE and INSERT statments for both tables), and the results you want to get from that data. If you want to pass a parameter to the query, give the results you want for a couple of different parameters.

Emailing results of a SQL Query....

I am new to Oracle and was wondering if there is a way to create an email task that could be used to email results of a sql query. My query returns emails addresses that meet a specified criteria. I want to use an email task that takes these addresses as variables and sends out an email to the specified email address.
Anyone provide any help with how I might do this?
Thanks.

Hi,
The odiSqlUnload has a "select" command. Is possible, at your process, work with the "LPAD()" and/or "RPAD()" function to complete the necessary whitespace at each column?
To the column heading I suggest you use the "union" like: (I put the lpad and rpad fuctions as example...)
select col1, col2, col3
from(
select 1 as internal_order, 'header_col1' as col1, 'header_col2' as col2, 'header_col3' as col3
from dual
UNION
select 2 as internal_order, RPAD(col1, 10, ' ') as col1 , LPAD(col2, 50, ' ') as col2 , col3
from your_table)
order by internal_order
Do you think this will work for you?

Pass the result of a SQL Query as table_name for another SQL Query

Hi All,
How to pass the result of a SQL Query as parameter to another SQL Query
Eg: I am doing the steps below.
1) select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ'
2) I want to pass the table_name from step 1 above as parameter to another query "select * from TAB1"
Thanks

Naveen B wrote:
Hi All,
How to pass the result of a SQL Query as parameter to another SQL Query
Eg: I am doing the steps below.
1) select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ'
2) I want to pass the table_name from step 1 above as parameter to another query "select * from TAB1"
ThanksYou should craete PL/SQL code with cursor which will accept a parameter and call that cursor inside the first one
But if the first sql returns only one row, you can do it with simple sql code
select * from (select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ')- - - - - - - - - - - - - - - - - - - - -
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

End the result of an sql query by Email as an excel file attachement

Hi,
I would like to create a PL/SQL function that send the result of an sql query by Email as an excel file attachement.
i'm newbie in pl/sql an d i dont know if it's possible to do such task.
regards,

i think a regular expression is he way to go in your case...
Azadi Saryev
Sabai-dee.com
http://www.sabai-dee.com

Populate a select list based on sql query

I need to populate a select list using an sql query based on the value value I get from the previous page sent using link . How can I achieve this behaviour ? I tried giving select app_item_id a,app_item_id b from app_item_definition where app_id = :P11_APP_TDL_ID order by 1 in LOV, but it doesn't work . Please advice .

Okay, I just had the right idea and it's working well! Sorry for posting!
I return the name of the employee that has edited a dataset and simply add all others of the logged on department! Really easy! Should have thought of that before posting! ;-(
The correct code is select str_bearbeiter, cnt_bearbeiter from vt_tbl_bearbeiter a, vt_tbl_punktdaten b where a.cnt_bearbeiter = b.int_bearbeiter and
inv_pt_id_sub = :P4_PTIDS
union select str_bearbeiter, cnt_bearbeiter from vt_tbl_bearbeiter where int_behoerde in (SELECT
CNT_REGIERUNGSBEZIRK FROM TBL_REGIERUNGSBEZIRK where STR_REGIERUNGSBEZIRK = lower (:app_user))Bye,
Seb

Xml parsing error while selecting whole result set for sql query

Hi All,
I am having xml parsing error while selecting whole query result set. The data is coming fine for default result set of 50 rows.
My exception is below.
ORA-31011: XML parsing failed
ORA-19202: Error occurred in XML processing
LPX-00234: namespace prefix "xsi" is not declared
Error at line 1
ORA-06512: at "SYS.XMLTYPE", line 254
ORA-06512: at line 1
*31011. 00000 - "XML parsing failed"*
**Cause: XML parser returned an error while trying to parse the document.*
**Action: Check if the document to be parsed is valid.*
My sql query is below that is giving results for default result set of 50 rows.
select extract(xmlType(clob_xml_colm_name), '//v2:node1//childnode/text()','xmlns:v2="namespace_url"').getStringVal() from table_name
My sql developer version is below.
Java(TM) Platform     1.7.0_04
Oracle IDE     3.1.07.42
Versioning Support     3.1.07.42
My database version is below.
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit
Please could any one help me urgently as the sql query is supposed to be correct as it is returning query results, but the problem happening when i try to select whole result set.
Thanks and regards,

What does the XML look like? It appears that some of the supposed XML stored as a CLOB is not really valid XML. Find the row in the table that is causing your issue and review the "XML" in it.

Access the results of the following query in Java? SELECT sum(COL_X) FROM TABLE_A

Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery(
"SELECT sum(COL_X) FROM TABLE_A");
int = rset.getInt("sum(NUM_CUSTOMER)");This is obviously wrong. Could someone please help me a little on the syntax? I just want to be able to get the sum of the numeric values in a column without having to loop through a ResultSet and manually adding up the total. My question is how can I access the results of this query by assigning the sum to a java variable?

Hi,
Probably the easiest way is to use an alias for the sum column, i.e.:
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery(
"SELECT SUM(COL_X) MY_SUM FROM TABLE_A"
int i = rset.getInt("MY_SUM");null

How to find out which Tables have been accessed without looking at the SQL query ?

Hi,
I would like to know is there a way to find out what queries have been executed and on which tables without looking at the SQL query.
I have an old C++ code which calls some library functions to access the Oracle database. The source code for the library is not available to me yet. The functions selects/updates/deletes and inserts based on some input parameters I give. I do not know which tables it affects. How do I find out the actual SQL query and/or the tables it accesses ? I was told about V$SQL table that
has the most recently executed queries, but
I did'nt see any queries connected to my process.
Could anybody help me on this ?
Thanks
Jagdeep
[email protected]
null

PRECISE/SQL can help you if you have access to it
2nd option can be that turn on SQL_TRACE
Run executable of ur c++ program
it will create a trace file in user_dump_dest
and then using TKPROF u can see all quesries and their plan also.
HTH
Gagan Deep Singh
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by (jagdeeps):
Hi,
I would like to know is there a way to find out what queries have been executed and on which tables without looking at the SQL query.
I have an old C++ code which calls some library functions to access the Oracle database. The source code for the library is not available to me yet. The functions selects/updates/deletes and inserts based on some input parameters I give. I do not know which tables it affects. How do I find out the actual SQL query and/or the tables it accesses ? I was told about V$SQL table that
has the most recently executed queries, but
I did'nt see any queries connected to my process.
Could anybody help me on this ?
Thanks
Jagdeep
[email protected]<HR></BLOCKQUOTE>
null

Access APEX_APPLICATION.G_F01 in an SQL query for a report

APEX 4.0.2.00.07
I've got a standard report with checkboxes. The SQL is along the lines of:
SELECT APEX_ITEM.CHECKBOX(1,empno,'CHECKED') " ",
       ename,
       job
FROM   empThen I have another report below this, which I want to drive based on the items checked in the first report. I know that the checkbox values will go into the APEX_APPLICATION.G_F01 collection. Normally these are accessed using pl/sql such as:
FOR I in 1..APEX_APPLICATION.G_F01.COUNT LOOP
    DELETE FROM emp WHERE empno = to_number(APEX_APPLICATION.G_F01(i));
END LOOP;But is there any way I can access the collection from the sql for my second report.
i.e. I want my sql to be something like:
SELECT empno, day_of_service
FROM   emp_timesheet
WHERE emp_no in <get access to the collection here>I was hoping that the check box collection would be available from the APEX_COLLECTIONS view, but it doesn't seem to be there.
Thanks,
John

John,
If the goal is to hold onto the checked values for some other processing then you could add them to a collection yourself.
create a process on your page which looks something like this:
This will create your collection if it does not exist or delete everything currently in it if it does exist and then insert your new selections.
DECLARE
   l_col_name varchar2(30) := 'EMP_SELECTED';
BEGIN
    apex_collection.create_or_truncate_collection(l_col_name);
    FOR I in 1..APEX_APPLICATION.G_F01.COUNT LOOP
        apex_collection.add_member(
            l_col_name,
            to_number(APEX_APPLICATION.G_F01(i))
    END LOOP;
END;your second query could look something like this:
SELECT empno, day_of_service
FROM emp_timesheet
WHERE empno in (select C001 empno
                   from apex_collections ac
                  where ac.collection_name = 'EMP_SELECTED')
Edit
some people choose to create a view ontop of certain collection queries which will be reapeated throughout the application so you could also just
create view selected_emps as
select C001 empno
from apex_collections ac
where ac.collection_name = 'EMP_SELECTED'   and your new query would look like:
SELECT empno, day_of_service
FROM emp_timesheet
WHERE empno in (select empno
                   from selected_emps)Cheers,
Tyson Jouglet
Edited by: Tyson Jouglet on Apr 6, 2011 10:37 AM

Last Result from Fulltext SQL Query Search Not Showing

I am creating a custom search results page for MOSS 2007 (using inline .aspx code - don't ask) that uses Fulltext SQL Queries. I get the results in a ResultTable (see code below) and then use a DataTable to write code to display it (I could have used
a DataGrid, I know).
The problem is that the last result is not showing. So, if it reports that there are 5 results, only 4 will show. I have verified that all 5 results do exist (using a slightly broadened query). If it reports 1 result, none exist in the DataTable that loads
the result data from the ResultTable.
FullTextSqlQuery query = new FullTextSqlQuery(site);
query.ResultTypes = ResultType.RelevantResults;
query.QueryText = qry;
query.RowLimit = 50;
query.StartRow = iPage;
try
ResultTableCollection results = query.Execute();
ResultTable resultTable = results[ResultType.RelevantResults];
DataTable table = new DataTable();
table.Load(resultTable, LoadOption.OverwriteChanges);
int n = resultTable.TotalRows;
The variable "qry" is a valid SQL Query with the relevant clauses.
I am using a foreach loop to go through "table" (a DataTable), and so I do not think that I have a "one-off error".
Any suggestions would be most welcome.

So in results you have all items but when you are loading it into table (type DataTable) you are loosing one last record.
1) First you check what data you are getting in resultTable - as you are specifying RelevantResult
2) Check last index of data in ResultTable collection and try to find out the last index ResultTable, or try to find last index of data in result table
DataTable.Load method accepts parm of type IDataReader and IDatareader, there are cases it looses records if not read properly..check below links
http://stackoverflow.com/questions/8396656/why-does-my-idatareader-lose-a-row
http://msdn.microsoft.com/en-us/library/system.data.datatable.load(v=vs.110).aspx
<hr> Mark ANSWER if this reply resolves your query, If helpful then VOTE HELPFUL <br/> <b><a href="http://insqlserver.com">Everything about SQL Server | Experience inside SQL Server </a></b>-<a href="http://insqlserver.com">Mohammad
Nizamuddin </a>

Use the results of an SQL query to create another query

I am working on a bidding/allocation system using C# and MySQL, and I am currently having difficulty implementing the “post-allocation” mechanics of the system. Let me explain how it works, before introducing the code:
When the bids are made on the system, they all have the position 0, so the first thing the system does is order them according to priority.
(bid table)
In this case, 5 bidders are interested in what is in plot 15, but we have not assigned them a position yet.
(bid table)
The system then organises the bids according to the order in which they are going to processed.
The bids are then allocated, but unfortunately there are only 3 spaces in plot 15 that can be allocated. As a result, we use the priority listing to determine which bidder gets what.
(booking table)
At this stage, I can say that I am stuck, there are two things that I want to do, both of which involve reusing the results of the query at step 2.
(bid table)
The bidders that have their job allocated should see: their bid.status updated
from Queued to Allocated,
the bid.position should
be set to 0,
and their job_id should
be set to the booking they have been allocated (i.e. booking.id).
The bidders that have not had their jobs allocated should see: their bid.status remain
as Queued, and their bid.position should
be set to 0 in
preparation for the method to run again
The difficulty I am having is in stage 3, how do I determine which jobs have been allocated and which ones have not, and then run the necessary SQL queries in order to make the updates?
My code so far is as follows:
// STEP 1a - SELECT BIDS
string query =
"SELECT t1.operator_id, t1.datetime, t1.plot_id, t1.position, t2.market_access FROM bid t1 " +
"JOIN operator t2 ON t1.operator_id = t2.id WHERE t1.status='Queued' AND t1.postcode=@postcode " +
"ORDER BY t2.market_access ASC, t1.datetime ASC";
var bidList = new List<BidList>();
var cmd = new MySqlCommand(query, _connection);
cmd.Parameters.AddWithValue(("@postcode"), _plot);
MySqlDataReader dataReader = cmd.ExecuteReader();
while (dataReader.Read())
var item = new BidList
OperatorId = dataReader["operator_id"] + "",
PlotId = dataReader["plot_id"] + "",
Position = dataReader["position"] + "",
Datetime = dataReader["datetime"] + "",
MarketAccess = dataReader["market_access"] + "",
bidList.Add(item);
dataReader.Close();
// STEP 1b - SET PRIORITIES
for (var i = 0; i < bidList.Count; i++)
var position = i + 1;
bidList[i].Position = position.ToString();
query = "UPDATE bid SET position=@position WHERE status='Queued' AND postcode=@postcode AND operator_id=@operator_id;";
cmd = new MySqlCommand(query, _connection);
cmd.Parameters.AddWithValue(("@position"), position);
cmd.Parameters.AddWithValue(("@postcode"), _plot);
cmd.Parameters.AddWithValue(("@operator_id"), bidList[i].OperatorId);
cmd.ExecuteNonQuery();
dataReader.Close();
// STEP 2 - ALLOCATE JOBS ACCORDING TO PRIORITY
foreach (var t in bidList)
query = "SELECT operator_id, plot_id, status FROM booking " +
"WHERE status='open' AND postcode=@postcode AND operator_id='0'" +
"ORDER BY datetime ASC;" +
"UPDATE booking SET operator_id=@operator_id, status='Allocated' " +
"WHERE (plot_id=@plot_id AND operator_id='0' AND status='Open') LIMIT 1;";
cmd = new MySqlCommand(query, _connection);
cmd.Parameters.AddWithValue(("@operator_id"), t.OperatorId);
cmd.Parameters.AddWithValue(("@postcode"), _plot);
cmd.Parameters.AddWithValue(("@plot_id"), t.PlotId);
cmd.ExecuteNonQuery();
dataReader.Close();
// STEP 3
CloseConnection();

I can't tell. When modifying row(s) you have to be able to uniquely be able to identify the row(s) in the database you want to modify. That is why I recommended the other day to use DataAdapter instead of the DataReader. You can with the
reader, but you need to unique identify the rows.
I can't tell from the limited amount of data you posted if in table 2 that there is only one row with the same operator id and plot id. It looks like in table 2 the 'id' number is unique. When working with a database with multiple tables you
need to be able to link tables together with primary keys (columns wit unique values). If the database isn't designed properly then it is impossible to do some operations. So you always have to make sure you design a database properly.
jdweng
When you say table 2 are you referring to the bid or booking table?
Here is the table structure for the bid table
Here is the table structure for the booking table
Hope it helps makes things clearer!

How can I display multiple column results of a sql query?

I'm wanting to display the results of a query selecting from multiple columns, but I can't seem to find an item type that will allow this. I've tried LOV, multiselect, display as text and others. Any ideas on how to do this. Here is my basic query:
Select ul.meaning,
rqa.submission_date,
rqa.location_num
from
cfa_rqa_doc_submit_dates rqa,
cfa_user_lookups ul
where
rqa.location_num in (Select location_num from cfa_current_locations_mv
where operator_person_id = :P1_PERSON_ID and substr(location_num,1,1) = '8')
and
ul.lookup_type_id='1269'
and
to_char(rqa.submission_date, 'month') = to_char(sysdate, 'month')
and
rqa.submission_date >= (SYSDATE-365)
and ul.lookup_ID= rqa.document_type_id
;

Hi,
Do you just wish to display the result of the query? If so, you can simply parse it out in HTML.
You can then choose if you want to use tables or css.
Multiple column layout in tables are based on <tr> and <td>.
<tr> is a table row, where <td> is a column.
All tags should be closed.
Example:
<table>
<tr>
<td>col1</td><td>col2</td>
</tr>
<tr>
<td colspan="2">spans over 2 cols</td>
</tr>
</table>If you want to do the same in css:
(Seems this forum removes the styles!):
float:left; width:50; << first div and 2 div (col 1 and col 2 style)
float:left;clear:both; width:100%; << clear both, double width (spans over 2)
<div>
<div style="float:left; width:50;">col1</div><div style="float:left;width:50%;">col2</div>
<div style="float:left;clear:both; width=100%;">Spans over 2 cols</div>
</div>The div might look more complicated, but if you refrain from styling in the tags them selves, you can define different styles in the .css file.
You need the clear:both to start a new line with the divs that float.
I usually run a dedicated "new line" div, without content.. (exception beeing the html-entities version of ' ' (& nbsp ; << without the spaces)).
eg.:
<div style="cls"> </div>Parsing out the values from the PL SQL you do like so:
begin
declare
cursor c_search is
Select ul.meaning,
rqa.submission_date,
rqa.location_num
from
cfa_rqa_doc_submit_dates rqa,
cfa_user_lookups ul
where
rqa.location_num in (Select location_num from cfa_current_locations_mv
where operator_person_id = :P1_PERSON_ID and substr(location_num,1,1) = '8')
and
ul.lookup_type_id='1269'
and
to_char(rqa.submission_date, 'month') = to_char(sysdate, 'month')
and
rqa.submission_date >= (SYSDATE-365)
and ul.lookup_ID= rqa.document_type_id
begin
htp.p('<div style="width:80%;">');
for v_search in c_search loop
htp.p('<div style="float:left;clear:none;">'||v_search.location_num||'</div>');
htp.p('<div style="float:left;clear:none;">'||v_search.submission_date||'</div>');
end loop;
htp.p('</div>');
end;
end;Ps. hope I understood you correctly, also this code is untested.. but I hope it can still help.
Edited by: Olav Alexander Mjelde on May 12, 2010 9:36 AM

How to use the result of a sql query for a max () function

Hi
I wrote a query on which i wrote
"select max(id) from users "
how can i use the returned value.
if i made the var name ="userid"
can it be userid.rows[0] or what.
thnx for any help

Hi!
The result of this query will be the max ID of users' IDs.
Let say we have:
String sql="select max(users.id) from users";
Statement st = ctx.conn.createStatement();
ResultSet rs = st.executeQuery(sql);
rs.next();
So you can get the max Id in the following way:
int maxId=rs.getInt("id");
Regards,
Rossi

Obtaining "rows selected" value after custom sql query in Database adaptor

We are executing a custom query in a database adaptor. With other technologies (JDBC, etc.) the result of a query will not only produce a result set but a count of the number of rows selected. E.G. the script output of Oracle SQL Developer will print out something like:
9999 rows selected
at the end of the script output.
I would like to obtain this value for a BPEL process. Of course, I could execute a 2nd query whose where clause is identical to the first, but selects count(*) instead. However, this is not only inefficient but (in rare circumstances in an active database) could be wrong.
It is not obvious to this BPEL novice how to obtain the row selected value as well as the result set in one Invoke. Is this possible?

This may not be the only solution - but it is how I have done it in the past.
Following the invoke step of the adapter, use an assign/copy step to populate an integer BPEL variable using the count xpath function...
<assign name="Initialize">
<copy>
<from expression="count(bpws:getVariableData('Invoke_Query_OutputVariable','MyTableQueryCollection','/ns3:MyTableQueryCollection/ns3:MyTableQuery'))"/>
<to variable="NumberOfRecordsReturned"/>
</copy>
</assign>
That should assign the number of records returned by the query.
I hope that helps.
Rod.
Edited by: Rod Tunnels on Dec 15, 2009 1:16 PM

Accessing select result in an SQL query

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