Dynamic query and Open Cursor fetch into ??

Hi;
I think we took the wrong turn some were... because looks like a dead end...
What I need to do:
Create a procedure to compare two generic tables in diferente databases and find rows that have diferent data.
(No restritions on what tables it might compare)
What I have done:
CREATE OR REPLACE PROCEDURE COMPARE_TABLES_CONTENT_V3(
tableName_A IN VARCHAR2, tableName_B IN VARCHAR2, filter IN VARCHAR2) AS
-- Get all collumns present in [TableName_A]
-- This is necessary to create a dynamic query
select column_name bulk collect
into v_cols1
from all_tab_columns
where table_name = v_tab1
and owner = nvl(v_own1, user)
order by column_id;
-- If there is no columns in table A ... them no need to proceed
if v_cols1.count = 0 then
dbms_output.put_line('[Error] reading table ' || tableName_A ||
' collumns information. Exit...');
return;
end if;
-- Collect Collumns information by ',' separated, for the query
for i in 1 .. v_cols1.count loop
compareCollumns := compareCollumns || ',' || v_cols1(i);
end loop;
-- Create the query that gives the diferences....
getDiffQuery := 'select ' || compareCollumns ||
' , count(src1) CNT1, count(src2) CNT2 from (select a.*, 1 src1, to_number(null) src2 FROM ' ||
tableName_A ||
' a union all select b.*, to_number(null) src1, 2 src2 from ' ||
tableName_B || ' b) group by ' || compareCollumns ||
' having count(src1) <> count(src2)';
Whats the problem?
I'm lost...I can access the query using debugging on the oracle procedure... and run it OK on a new SQL window. No problem here... its perfect.
But I dont know how to access this information inside the procedure, I need to format the information a bit...
I try a cursor...
open vCursor for getDiffQuery;
fetch vCursor into ??????? -- Into what... query, columns and tables is all dynamic...
close vCursor;
Any ideas..

Making the issue more simple....
At this point I have a oracle procedure that generates a dynamic sql query, based on the table names passed by parameter.
getDiffQuery := 'select ' || compareCollumns || (.....)
end procedure;
This ''getDiffQuery'' contains a query that gets the diferences in the tables. (Working fine)
I would like to access this information in the same procedure.
I cant use cursor because the table, columns... actualy all is dynamic based on the generated query:( !

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Link Query and Ref Cursor Query

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I have searched the forum and this is the closest to my problem.
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Dynamic query and parameters

Hi there,
I have created a procedure and passing values via parameters but then the sql statement takes it as a string rather than parameters. Could you please let me know what it is that I am doing wrong.
Code is as follows:
CREATE OR REPLACE FUNCTION GetTableData(p_vInTname IN VARCHAR2
,p_dInLastPubTms IN DATE
RETURN CLOB
IS
vStrSqlQuery VARCHAR2(32767);
TYPE ref_cursor IS REF CURSOR;
rc_tablevalues ref_cursor;
lc_XML CLOB;
BEGIN
vStrSqlQuery:= q'[SELECT dbms_xmlgen.getxml('SELECT * FROM p_vInTname ' ||' WHERE record_update_tms >= TO_DATE(p_dInLastPubTMS,'MM/DD/YYYY HH24:MI:SS')) FROM dual]';
DBMS_OUTPUT.put_line(vStrSqlQuery);
OPEN rc_tablevalues FOR vStrSqlQuery;
FETCH rc_tablevalues INTO lc_XML;
CLOSE rc_tablevalues;
RETURN lc_XML;
printClob(lc_XML);
END GetTableData;
This compiled successfully.
Another procedure for printing
Create or replace PROCEDURE printClob (result IN OUT NOCOPY CLOB) IS
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BEGIN
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END printClob;
I am trying to test it to see how it behaves, so created a test procedure which is:
CREATE OR REPLACE PROCEDURE SANDEEP_TEST_LAMXML
IS
lv_x CLOB;
BEGIN
lv_x := CTN_PUB_CNTL_EXTRACT_PUBLISH.GetTableData('TRKFCG_SBDVSN',TO_DATE('04/27/2015 19:57:10', 'MM/DD/YYYY HH24:MI:SS'));
END;
The above one too compiles successfully. However when I set a break point and then try to pass through the function instead of seeing the parameter in the second part of the query, I am seeing it as:
SELECT dbms_xmlgen.getxml('SELECT * FROM p_vInTname ' ||' WHERE record_update_tms >= TO_DATE(p_dInLastPubTMS,'MM/DD/YYYY HH24:MI:SS')) FROM dual
What is that I am doing wrong that I am unable to see the runtime parameters being passed into the variables of the query? Can any one suggest something? I am handling dynamic queries and also a solution such as the above for the first time.
Thanks in advance.

There are quite a few errors and here's a working version:
CREATE OR REPLACE FUNCTION GetTableData(p_vInTname IN VARCHAR2
,p_dInLastPubTms IN VARCHAR2
RETURN CLOB
IS
vStrSqlQuery VARCHAR2(32767);
TYPE ref_cursor IS REF CURSOR;
rc_tablevalues ref_cursor;
lc_XML CLOB;
BEGIN
vStrSqlQuery:= q'[SELECT dbms_xmlgen.getxml('SELECT * FROM ]'||p_vInTname||q'[ WHERE record_update_tms >= TO_DATE('']'||p_dInLastPubTMS||q'['',''MM/DD/YYYY HH24:MI:SS'')') FROM dual]';
DBMS_OUTPUT.put_line(vStrSqlQuery);
OPEN rc_tablevalues FOR vStrSqlQuery;
FETCH rc_tablevalues INTO lc_XML;
CLOSE rc_tablevalues;
printClob(lc_XML);
RETURN lc_XML;
END GetTableData;
CREATE OR REPLACE PROCEDURE SANDEEP_TEST_LAMXML
IS
lv_x CLOB;
BEGIN
lv_x := GetTableData('TRKFCG_SBDVSN','04/27/2015 19:57:10');
END;
This version will be easier to understand:
CREATE OR REPLACE FUNCTION GetTableData(p_vInTname IN VARCHAR2
,p_dInLastPubTms IN VARCHAR2
RETURN CLOB
IS
vStrSqlQuery VARCHAR2(32767);
TYPE ref_cursor IS REF CURSOR;
rc_tablevalues ref_cursor;
lc_XML CLOB;
BEGIN
vStrSqlQuery:= 'SELECT * FROM '||p_vInTname||' WHERE record_update_tms >= TO_DATE('''||p_dInLastPubTMS||''',''MM/DD/YYYY HH24:MI:SS'')';
DBMS_OUTPUT.put_line(vStrSqlQuery);
SELECT dbms_xmlgen.getxml(vStrSqlQuery)
INTO lc_XML
FROM dual;
printClob(lc_XML);
RETURN lc_XML;
END GetTableData;

Dynamic sql and updating cursors

hi to anyone,
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Now I defined a cursor to walk through the table - using cursor reference "ref cursor". Using this cursor works, but i found no way using this cursor for update. i.e. declaring as .. for update of and later putting it into an execute immediate like " execute immediate 'update ' || w_temp_table || ' set f1 = :1, f2 = :2 where current of ' || w_cursor using w_1, w_2;" It doesnt work if I block this command using "begin / end".
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thanks in advance
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Thanks todd,
my main purpose has been just using the dynamic cursor for update as I know that this is quite easy and also fast. I didnt concern about locking all rows I walk through. But you are right - at end you will use the most easy way. So what I did because of another cursor problem ( with analytical functions ) - I defined the temporary table before compiling and everything is much more convenient.
thanks for help
wilko

Dynamic Query and Collect Statement.

Hi Gurus....
Please explain me how to write dynamic Query,,, Pl. give me with example.
Also would like to know basics of Collect statement and it's use..
Thanks
Ritesh

Hi Ritesh,
COLLECT is used to create unique or compressed datsets. The key fields are the default key fields of the internal table itab . If all non-numeric fields are same in the internal table then it will add numeric fields and maintains a single entry
If you use only COLLECT to fill an internal table, COLLECT makes sure that the internal table does not contain two entries with the same default key fields.
Check this link to know about COLLECT statement
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/collect.htm
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DATA:
V_TABNAME TYPE DDO2L-TABNAME,
V_CONDTION TYPE STRING.
V_TABNAME = 'MARA'.
V_CONDTION = 'MATNR LIKE 'S*'.
SELECT MATNR
FROM <b>(V_TABNAME)</b>
INTO TABLE ITAB
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>
Any thoughts what could be the problem. Only time I ever got them was because the result set, statement, connection wasn't being closed or wasn't being closed in the correct order.

Dynamic Query and default run-time values

I am trying to build a dynamic query within dreamweaver and
retain access from the bindings panel.
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this works fine but now i want to expand on this so the query
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Andy Millne wrote:
> That will work fine server-side yeah but dreamweaver
cannot parse the code at
> design time so by altering the code in this way you lose
access to the bindings
> panel and all the server behaviours that depend on the
recordset have
> exclamation marks alongside.
This is simply a question of organizing your workflow. As you
have
discovered, Dreamweaver no longer recognizes a recordset if
you make
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use
Dreamweaver to construct your page using an unaltered
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inserting
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from the
Bindings panel, and you get exclamation marks in the Server
Behaviors
panel, but that's not important. If you need to restore them
for any
reason, just wrap the changes in /* */ comments. Remove the
comments
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David Powers, Adobe Community Expert
Author, "The Essential Guide to Dreamweaver CS3" (friends of
ED)
Author, "PHP Solutions" (friends of ED)
http://foundationphp.com/

Cursor fetch into

I have a function, to which i pass a sql statement.In the function using the cursor i get the output of the sql statemnt into a output variable. This function works fine, but for one particular select statement it takes[u] over an hour to execute in the FETCH...INTO statement specifically. The same select statement when executed outside in sql editor returns in under 2 mins.
The output of the sql is 5 records. Any ideas on why it is taking forever in the FETCH...INTO statment?
FUNCTION getOutput(p_sql VARCHAR2)
RETURN VARCHAR2
AS
TYPE extractlinecurtype IS REF CURSOR;
cur_extract extractlinecurtype;
v_oneextractline VARCHAR2 (32767);
v_output VARCHAR2 (32767) := NULL;
crlf CHAR (2) := CHR (10) || CHR (13);
BEGIN
OPEN cur_extract FOR p_sql;
dbms_output.put_line(sysdate);
LOOP
FETCH cur_extract
INTO v_oneextractline;
EXIT WHEN cur_extract%NOTFOUND;
v_output := v_output || CHR (10) || v_oneextractline;
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IF cur_extract%ISOPEN
THEN
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END IF;
v_output := v_output || crlf || crlf;
return v_output;
EXCEPTION
WHEN OTHERS
THEN
dbms_output.put_line('error in getoutput' || SQLCODE || SQLERRM);
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I cannot send the sql cause it uses our internal tables. My question is why does a query take under 2mins to run in sql editor and over an hr in pl/sql with cursor?
Is there something wrong in declaration?

Dynamic sql and ref cursors URGENT!!

Hi,
I'm using a long to build a dynamic sql statement. This is limited by about 32k. This is too short for my statement.
The query results in a ref cursor.
Does anyone have an idea to create larger statement or to couple ref cursors, so I can execute the statement a couple of times and as an result I still have one ref cursor.
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Thanks in advance,
Jeroen Muis
KCI Datasystems BV
mailto:[email protected]

Example for 'dynamic' ref cursor - dynamic WHERE
(note that Reports need 'static' ref cursor type
for building Report Layout):
1. Stored package
CREATE OR REPLACE PACKAGE report_dynamic IS
TYPE type_ref_cur_sta IS REF CURSOR RETURN dept%ROWTYPE; -- for Report Layout only
TYPE type_ref_cur_dyn IS REF CURSOR;
FUNCTION func_dyn (p_where VARCHAR2) RETURN type_ref_cur_dyn;
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CREATE OR REPLACE PACKAGE BODY report_dynamic IS
FUNCTION func_dyn (p_where VARCHAR2) RETURN type_ref_cur_dyn IS
ref_cur_dyn type_ref_cur_dyn;
BEGIN
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END;
2. Query PL/SQL in Reports
function QR_1RefCurQuery return report_dynamic.type_ref_cur_sta is
begin
return report_dynamic.func_dyn (:p_where);
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Regards
Zlatko Sirotic
null

How ca n i build a dynamic query in a cursor

i have a cursor in a procedure. it runs some sql query. i want to build a part of this query dynamically based on the parameters passed to this procedure.how should i do thatnow the cursor is before the begin end structure and if i have to build a query whose return results are to be processed then i have to write that in a cursor and i cannot write a cursor inside a begin end(that's my understanding) and only way to build a query is to build it in a begin end . i think reference cursors can be used to accomplish this task. can someone guide me with this.thnx in advance.

This is straightforward programming logic....
CREATE OR REPLACE FUNCTION my_qry
   (p1 IN VARCHAR2 := NULL, p2 IN VARCHAR2 := NULL)
   RETURN sys_refcursor
IS
   stmt VARCHAR2(32767) :='select creation_date from mytable';
   clause1 VARCHAR2(32767) := 'app_id=';
   clause2 VARCHAR2(32767) := 'ticket_number=';
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BEGIN
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      WHEN p1 IS NOT NULL AND p2 IS NOT NULL
      THEN
         open rc for stmt||
             ' WHERE '||clause1||':1 AND '||
             clause2||':2' USING p1, p2;
      WHEN p1 IS NOT NULL AND p2 IS NULL
      THEN
         open rc for stmt||
             ' WHERE '||clause1||':1 ' USING p1;
      WHEN p1 IS NULL AND p2 IS NOT NULL
      THEN
         open rc for stmt||
             ' WHERE '||clause2||':1 ' USING p2;
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         open rc for stmt;
    END CASE;
    RETURN rc;
END;
[pre]
Cheers, APC

Can we change/Modify BI server generated Sql query and run to fetch data

Hi,
My client is saying that there is an option to modify bi server generated sql query to fetch data from source.
question:As a request is made in presentation services, A dynamic sql query is generated and fetches data from source. all this is loggedin Nqlquery log..well can we change/modify the sql query generated and run modified sql query to fetch data from source. ., if so how? if not why?
Thanks in advance
Edited by: user10794468 on Jun 16, 2009 6:29 PM
Edited by: user10794468 on Aug 12, 2009 6:58 PM

Thank you so much for your reply..
..Can we also modify sql query generated by bi server to fetech data. the query's which we see in query log file..

Cursor Fetch into Record vs Record Components

Anyone,
What are pros and cons of the use of the cursor method that fatches into a single record value vs. that of record components?
I am just not seeing why you might use one vs other so was curious if their is something I am missing in reagrds to performance or temp space required or anything like that????
Thanks for any help,
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You should use record components when possible. It is easier to code and read.
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dbms_output.put_line(c_rec.b || c_rec.a);
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Dynamic query with ref cursors

please help me out there.
can you give an example of how to construct a procedure using ref cursors.
say if I had an employee table.
employee table
first name
last name
position
dept
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How can I construct the procedure being that the parameters will be dynamic
thanks.

Don't worry user484105 I don't do kicking, sarcasm and bad humour are other matters though.
Yes you can use sys_refcursor, in fact all the tests that Todd and I have supplied, have done just that. Do you have a development database to work in?
if so I would recommend
1. Run demobld.sql if you don't already have emp table.
2. Copy my second post in your other thread.
3. Edit out all the sqlplus output and the first four columns.
4. If any of this puzzles you see if you can find the answer in the SQL Reference, PL/SQL Guide or SQL*Plus manuals
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14200/toc.htm
http://download-east.oracle.com/docs/cd/B19306_01/appdev.102/b14261/toc.htm
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14357/toc.htm
5. If you can't find the answer post what you have and the error here.
6. It is probably best if you use sqlplus for this.
You will learn a lot if you can do this.

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cursor. I tried searching for an answer, and have found nothing.
They are movieclip buttons with a dynamic text field. I already
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Dynamic query and Open Cursor fetch into ??

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