Quest Toad Software - Does It Preload Tables When Running Same Query Again
Feb 19, 2009
I have a large, relatively complex query which I am in the midst of trying to optimize. I am using Toad as my SQL editor and executor. I am trying to test the execution time, but the first time the query executes is a good 5mins slower than future executions. I am wondering; does Toad "pre-load" the tables from previous querys when re-running a query?
I want to be able to run a query as if its the first time it is being run in order to truly gauge whether I am really optimizing the code or not.
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Oct 20, 2010
I need to run Toad codexpert using command line I am trying the following command
"C:Program Files... oad.exe" CX="C:... CmdLineTest.ini"
When I execte the command from command line .Codeexprt run and stop after some time and it make entry in the error log as "ora-00942 table or view does not exist".
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Jun 4, 2012
I run procedure on toad 10.5, it gave me this error
Buffer overflow, limit of 20000 bytes
then it can not continue running the procedure.
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Feb 3, 2011
i do have a set of monthly process, where i need to run query one after the other. Some query will take one hours time to complete but some will take 10 hours or more to execute. My problem is that we have wait or machine shouldn't hang or log off during that time ...
I am executing the query in TOAD and windows SQL*Plus. Query can run Parallel at a time.
Is the there anyway to run the query in the background like what we do in the unix nohup command in toad?
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Jan 24, 2012
When i run the below mentioned query(similar query)on TOAD. It will run without any errors and i can see "PL/SQL Procedure successfully completed" in the task bar.....
However i am unable to see the output for the query.
print the the query output on TOAD ....
**** Sample Query Starts *****
DECLARE
i PLS_INTEGER;
BEGIN
SELECT NVL(i, 93)
INTO i
FROM DUAL;
--print i;
--dbms_output.put_line('i1: ' || i);
END;
**** Sample Query Ends*****
**** Actual Query Starts *****
-----------------------------------------------------------------
DECLARE
UnxDate number(6);
MyResult number(6);
Todaysdate date := TO_DATE('17-01-2012 00:00:00','dd-mm-yyyy hh24:mi:ss');
BEGIN
SELECT ROUND (Todaysdate - TO_DATE('01-jan-1970','dd-mon-yyyy') ) INTO UnxDate FROM dual;
[code]......
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Sep 11, 2013
The date is different for same query in Toad and Sql Developer.
Below is the query
In SQL Developer
SELECT start_date, length(start_date) from my_table where p_id = 1;
09-MAY-5249 9
In Toad
SELECT start_date, length(start_date) from my_table where p_id = 1;
blank 9
Did some queries below for research.
SELECT start_date, DUMP(start_date, 1016)
from my_table
where p_id = 1;
09-MAY-5249Typ=12 Len=7: 30,37,d5,a,0,a2,d5
SELECT start_date, DUMP(start_date, 1016)
from my_table
where p_id = 2;
01-JAN-2013Typ=12 Len=7: 78,71,1,1,1,1,1
Why is same query returning two different results in two tools.
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May 14, 2010
I can't figure out how to configure the query editor to copy the column headers with the query results on to the clipboard?
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Nov 13, 2012
The scale of the tests that generate the following scenario is not huge right now, only 50 users simulated (or you can think of them as independently running threads if you like). But here is the crunch, the queries generated (from generic transaction layer) are all running against a table that has 600 columns! We can't really control this right now, but this is causing masses amounts of IO (5GB per request) making requests queue for disk availability (which are setup RAID 0/1); its even noticable for as few as 3 threads.
I have rendered the SQL on one occasion to execute in 13 seconds for a single user but this appears short lived as when stats were freshly gathered it went up to the normal 90-120 seconds. I've added the original query to the file, however the findings here along with our DBA (who I trust implicitly) suggest that no amount of editing the query will improve the response times, increasing the PGA/SGA (currently 4/6GB respectively) will only delay the queuing for a bit and compression can work either. In short it looks as though we've hit hardware restrictions already for this particular scenario.
As I can't really explain how my rendered query no longer takes 13 seconds, it's niggling me that we might be missing a trick.So I was hoping for some guidance on possible ways of optimising these type of queries against such wide tables, in other words possibilities that we haven't considered...
Attached is the query and plan.
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Jul 29, 2010
i am facing group by issue when running the query.the error code is ORA-00979: not a GROUP BY expression.i suspect is due to the subquery in the SELECT clause.
SELECT
WHINR100.COMPANY,
WHINH210.SEQN,
FXINH039.OTBP,
WHINR100.BPID,
TCCOM100.NAMA,
WHINR100.ITEM,
WHINH210.RCNO,
FXINH051.btch,
case when (whinh210.ORNO in (select fxinh033.pdno from fxinh033))
[code]...
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Dec 20, 2012
I'm trying to create a report in the following format
Year Name Reg1 Reg2 Reg3
2001 Al 3 4 5
2001 Le 4 1 1
2001 7 5 6
2002 Sue 2 4 1
2002 Al 1 3 6
2002 Jim 6 1 3
2002 16 15 16
2003 Jim 4 -3 2
2003 Le -2 4 5
2003 20 16 23
Note that the totals are accumulating horizontally, broken on year.
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Jul 13, 2008
Is there a way to know how much time will a query take to execute without running it, just like using the autotrace (traceonly) and explain plan utility.
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Feb 19, 2012
I need to say I am an absolute NOOB when it comes to SQL.I need a script to run in TOAD that will reference a CSV file saved onto my local hard drive. I'll try and describe exactly what I need to do.
The current script which I use via TOAD on our companies READ ONLY database is this:
SELECT d.number_id,
d.status_id,
FROM table.number_t d
WHERE d.number_id IN ('1230001', '1230002', '1230003')
This will return a result for each number that exists within the table.number table along with the status of each number i.e. active or inactive. A very basic query.
What I need to be able to do is run that query but instead of having to copy each number into TOAD manually, I need TOAD to check a .csv file of said numbers and then return the results.So I imagine the query would look something like:
SELECT d.number_id,
d.status_id,
FROM table.number_t d
WHERE d.number_id IN (check
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Nov 23, 2011
provide me the query to check our database is running using spfile or running using pfile.
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Feb 19, 2012
How do i find a particular SQL or a set of SQL's which are excuted against a table (user identified table) that is either a very frequently executed query against that table or high impact SQL against that table? I am currently looking through the AWR reports to go through all the queries but i was wondering if there are any dictionary views where we can find this info from?
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Sep 4, 2008
I have a query similar to the one below which is embedded in a PRO*C program. The query works fine when run in the PRO*C program against a 8i database but fails with an "ORA-02015: cannot select FOR UPDATE from remote table" error when run against a 10g database. The PRO*C program is executing the sql using "EXEC SQL".
QUERY: Select last_name, first_name from Member
where ....
FOR UPDATE OF LAST_NAME;
The other thing to note is this SQL query works fine via sqlplus in a 10g environment.
ADDITIONAL DETAILS: The above query is selecting data from a base table via a user view
VIEW: select * from
otherschema.member@connection_identifier;
This view was created in this manner to allow the user account access to the underlaying table without creating explicit permissions.
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Feb 27, 2013
How to find currently running scheduled jobs using query !?
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Apr 27, 2012
I have a Query(report) which is running in <5 mins in one Scheme, where as the same is running for a long time in second schema. I have identified that an Index is scanning for more than 2000 Millions of records in second Schema, but this is scanning only 440 Millions in First Schema and hence it is fast. I am expecting the same to be done in Second schema.
I have verified the following
All records in tables in 2 schemas are same.
All indexes are same
Analyzed the tables
Gathered Histogram on all the columns as per the first schema.
But now i still have the same problem, don't know what could be the problem.
Table_nameNum_RowsBlocks
PRPSL_LST_T5866107159
PRPSL_WKFLW_ACTVTY_T5829904030
ITEM_CHR_VAL_T5134340104049020
ITEM_RGN_ASSN_T8571220137215
Also attached 2 screen shots of OEM Plans..
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Sep 26, 2013
How can i check if paging happening while running the query. As i have 4gb of PGA target but the query is taking long time in parallel and has hash join.
how to check paging in 11gr2
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May 2, 2012
How can we check completion status for running sql query. i.e. how much % completed
SQL> begin
2 delete from gsmcrmdw.wc_loy_txn_f_aa
3 where integration_id in
4 ( select integration_id
5 from support_olap.recover_wc_loy_txn_f_953to955
6 );
7 commit;
8 end;
9 /
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Oct 1, 2012
I am on APEX 4.1.1, db 11g and I have a report which is quite slow to retrieve results from its query. The page has some filter fields (e.g. store code, dept code) in addition to the generic search field.
When the user lands on this page (from a menu page), the query runs before the page displays and this typically takes 1-2 mins without any filters yet set. The usual browser loading indicators are not obvious to the user and they might not be aware that it is working on the request.
I want it so that it will only run the query AFTER allowing the user to get to the page, let the user fill in some filter criteria and then click on the GO button. Therefore the query will run after the page is submitted. When you hit the GO button on the interactive report, a nice rotating apex_loader.gif appears, making it obvious to the user that it is working on the request.
I would prefer NOT to create 2 pages, one for user filter, and a second for the actual report as I have many reports/inquiries which fit this category and I would prefer NOT to have to create pairs of pages for each.
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Jun 7, 2011
I have two tables a and b column names are id and date. Data type of date in a and b are different
table (a)
date id
10-DEC-01 2:08:39 PM 1
10-DEC-01 2:08:39 PM 2
10-JAN-02 10:10:22 PM 3
10-JAN-02 10:10:22 PM 4
10-JAN-02 10:10:22 PM 5
table (b)
date id
10-DEC-01 1
10-DEC-01 2
I need table b like this one
table (b)
date id
10-DEC-01 1
10-DEC-01 2
10-JAN-02 3
10-JAN-02 4
10-JAN-02 5
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Nov 22, 2011
How to update two tables in single set or single query ?
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Oct 30, 2013
How does one select * from one table without selecting * from other tables that are included in a query? For example, if in the query below I want to view all fields in some_table, but not the fields from other_table, how do it?
select *
from some_table st,
other_table ot
where st.id = ot.id
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May 13, 2013
I saw a strange plan for one query in TESTING DB today. Although 2 tables are involved i dont see any join , NL/HJ/SMJ !! i am not facing any performance issue but curious to know what type of optimization oracle is doing here.
Query text and plan :
SELECT FIRST_NAME
FROM CAMPA.TABLE_A
WHERE NAME_ID =
(SELECT NAME_ID
FROM CAMPA.TABLE_B
WHERE ban=:b1);
[code]....
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Oct 6, 2011
I have two primary key values based on that I would need to query at least 25+ tables(each of these tables might have both primary key columns or either one to query) to extract data for my 150 columns and load it onto my target table.
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Oct 15, 2012
is it possible to update a same column name in two tables.
I have two tables in same schema
(1)table name
pem.igp_parent
column name
igp_no.
igp_type
(2)table name
pem.igp_child
column name
igp_no.
igp_type
i want to update igp_no column in one query, how it would be possible.
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Aug 30, 2010
I have a query regarding nested tables while exporting. Are we not allowed to use Query clause during the export of nested table?
I am getting the error:
"EXP-00053: unable to execute QUERY on table NT_LP_COREBAL_MAINT because the table has inner nested tables
Export terminated successfully with warnings."
The exp command we are using is:
exp XXXX/XXXX@XXXX file=test1.dmp log=test1.log tables=nt_lp_corebal_maint query='where domain_id=10110307'.
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Oct 16, 2013
I am interested if there maybe exists any function that would return all source tables that are present in the given sql. For example function('select 'abc' from table_1, table2') would return a list containing 'table_1' and 'table_2'.
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Mar 2, 2011
The code was originally an MS Access Query with linked tables to the Oracle DB however trying to remove the need for access and have it drop directly into Excel using Recordset.
SELECT
SWPRO.CASE_INFORMATION.CASEDESC,
SWPRO.OUTSTANDING_MAIL.CASENUM,
CASE_DATA_1.FIELD_VALUE,
SWPRO.OUTSTANDING_MAIL.SENTDATE,
SWPRO.OUTSTANDING_MAIL.DEADDATE
FROM
[code]....
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Aug 16, 2011
I wanted a query that will give me the list of views using three tables
when i fire
select * from dba_views where text like '%SELECT%';
it is giving me error as expected number got long.
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