From 10g, "SQL Statement Length" description disappeared....

http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10755/limits003.htm#sthref3594
From 10g, on the above 'Logical Database Limits' section of 'Reference' document, the description for 'SQL Statement Length' limitation (64K) has been dropped.
Is this mean there is NO limitation on 10g or just mistake?

Hi Tadaaki,
Apologies for the delay in responding to you.
Unfortunately I cannot answer this question. Although my group maintains the Documentation pages on OTN, we are not part of OTN, nor do we have input with regard to the content of documentation. We merely provide links to the documentation at: http://www.oracle.com/technology/documentation/index.html
Please try the Members Feedback Forum at: Community Feedback (No Product Questions)
Thanks and regards,
Les

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Hello Sue,
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Oracle 7 - Maximum SQL statement length

http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96536/ch44.htm#288033
Like above, maximum SQL Statement Length is clearly defined on the "Reference" document of Oracle 8, 9, and 10.
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This info is available in the Oracle 7 Server Reference. It can be found via http://otn.oracle.com/documentation. Look at the "Previously Released Oracle Documentation" to access it. It's a pdf. Here's a direct link: http://download-uk.oracle.com/docs/pdf/A32589_1.pdf. The details can be found in chapter 5.
It comes down to this: 64k.
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I am facing problem in the production sever there is high Database server load from expensive SQL statements as per EVA report
Buffer Load [%]     Disk Load [%]     CPU Load [%]
55     69     0
Analysis of DB SQL CACHE
EXPENSIVE SQL STATEMENTS OVERVIEW
Object Name     CPU Load [%]     I/O Load [%]     Elapsed Time [%]     Executions     Records Processed
BSIS        1     9     0     22     90462
CDEF$     6     6     0     2131113     2575694
BSAD     1     3     0     21     408576
MKPF     1     32     0     180     3899
ICOL$     9     1     0     2575694     8703798
OBJ$     6     1     0     3405254     3400023
COL$     12     0     0     2138793     22919657
MKPF     1     13     0     75     396
MCHB     7     0     0     366543     41708
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Hi,
In tx code ST05 i have find the following deatails.
Duration |Obj. name |Op.    |Recs.|RC    |Statement
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2,181,565 ZRIN FETCH       4   1403
706,267 DBA_SEGME FETCH      99      0                                                                                8,248 DBA_SEGME FETCH      99      0                                                                                44,994 DBA_SEGME FETCH      99      0                                                                                67,713 DBA_SEGME FETCH      99      0
1,367,923 DBA_SEGME FETCH      99      0
16,735|TADIR     |FETCH |    1| 1403|                                                                                |
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SQL statement length downgrades performance

Hi all!!!
I wonder if someone have noticed this or knows an answer on it. When the length of an SQL sentence is greater than 2000 bytes (+ or -) the time to process grows dramatically. See examples and environment below.
No matter how complex the query is, the time to execute the 'executeQuery' can be x10 times slower than small queries. There is no need to send complicate queries. I have even test it using a simple 'SELECT SYSDATE FROM DUAL'. I'm unable to understand why the time to process this query can vary from 10ms to 130ms just by appending blank spaces into the query (i.e.: 'SELECT SYSDATE FROM DUAL ')
Examples:
The times shown are taken using 'System.currentTimeMillis()' just before and after the call to 'executeQuery()' or 'execute(sql):
'SELECT SYSDATE FROM DUAL' -> takes from 0ms to 30ms
'SELECT SYSDATE FROM DUAL' + 1000_blank_spaces (' ') -> takes from 0ms to 30ms (the same)
'SELECT SYSDATE FROM DUAL' + 2000_blank_spaces (' ') -> takes from 100ms to 130ms
I have made a loop increasing spaces 1 by 1 up to 2500. I found that the performance is always on the range 0-30ms up to a total length of 1970 characters. After that, all the queries takes 100-130ms.
I also tested with very complex queries (implying several tables and indexes) like 'SELECT field_1, field_2 FROM table_1, table_2 WHERE very_complex_condition'. This may take 10-30ms. However, if something is added to that query (i.e a 'field_3' on the SELECT, blank spaces, a new 'AND', etc...) that makes the string be larger than 1970 characters, the query takes then 100-130ms.
The same results are get using Statements or PreparedStatements.
I end up that when the SQL String is close to 2Kb the JDBC Thin Driver spends 100ms doing something unknown. This seems to be an issue on the Thin driver, since the same tests using OCI give homogeneous time (no mater the length) but they are slower than the Thin driver (70-80ms for the same 'SELECT SYSDATE FROM DUAL'). It does not seems to be related with the network because some of the tests used the same machine (server and client).
Does anyone have an explanation about this?. All suggestions are welcome.
Here comes the technical info:
SERVER
- Oracle 8.1.6 on Solaris 8 sparc 64 bits (Sun ultra-10).
CLIENTs
- Windows NT 4 / Solaris 8 (tha same box as the server)
- JDK 130 / JDK 131
- JDBC 8.1.6 / JDBC 8.1.7 (downloaded from Oracle site)
Best regards
Roberto.

More on this.
After increasing the length of the SQL statement up to 3600 bytes and more, the execution time goes back to 10-30ms. So performance is only bad in the range 2Kb-3.5Kb
I'm really confused about this issue.

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The following SQL statement brings back records using query
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SELECT COUNT(h.userID) AS hits, u.OCD
FROM dbo.tbl_hits h INNER JOIN
dbo.tlkp_users u ON h.userID = u.PIN
WHERE (h.appName LIKE 'OPwiz%') AND (h.lu_date BETWEEN
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GROUP BY u.OCD
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Anthony Spears wrote:
> That didn't work either.
>
> But here is something interesting. If we use the dates
05/01/2007 and
> 06/01/2007 we get results in SQL Server Query Analyzer
but not using a cold
> fusion page. But if we use the dates 05/01/2007 and
09/01/2007 both get back
> the same results.
>
Are you absolutely, 100% sure that you are connecting to the
same
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field_name
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SHORT_DESCRIPTION
OBJECT_ID
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I'm sure there must be a way to do this in an single sql statement, is anyone able to advise.No, there is no simple way to get the column name then select those ones in one statement.
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spool c:\test.txt
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Please paste you SQL file here. These is no way one should overwrite another.
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The PHP forum for questions like this is at http://www.oracle.com/technetwork/forums/php/index.html
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the last part of it is like so:
"SELECT DISTINCT AID, ACTIVE, REQUESTOR_NAME, ..." +
"REQUESTOR_EMAIL" +
" FROM CHANGE_CONTROL_ADMIN a INNER JOIN CHANGE_CONTROL_USER b " +
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<%
rslts.close();
selstmt.close();
catch(Exception ex){
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%>AND so on, setting 13 getXXX methods of the 16 cols in the SQL statement.
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Message was edited by:
bpropes20
Message was edited by:
bpropes20

Am I omitting something crucial from the while
statement that's needed to accurately print out the
results set without duplicating it and that will
ensure returning it?Yes.
In this code, nothing ever changes the value of reqname or any of the other variables.
while ((rslts).next()) { %>
<tr class="style17">
    <td><%=reqname%></td><td><%=reqemails %></td><td><%=bizct %></td>td><%=dept %></td>
   <td><%=aidn %></td>
</tr>
<%
} You code needs to be like this:while (rslts.next()) {
reqname = rslts.getString(3).toUpperCase();
reqemails = rslts.getString(4);
bizct = rslts.getString(5);
dept = rslts.getString(6);
loc = rslts.getString(7);
datereq = rslts.getDate(8);
busvp = rslts.getString(9);
%>
<tr class="style17">
    <td><%=reqname%></td><td><%=reqemails %></td><td><%=bizct %></td>td><%=dept %></td>
   <td><%=aidn %></td>
</tr>
<%
There's also records in the DB that I know are there
but aren't being returned. Different names (i.e.
Jennifer, Jesse, Jeremy) won't be returned by typing
in partial name strings like Je.Well, you're half-right, your loop won't display all the rows in the result set, because you call rslts.next(); once immediately after executing the query. That advance the result set to the first row; when the loop is entered, it starts displaying at the 2nd row (or later if there are more next() calls in the code you omitted).

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Hi,
After WHERE .......... is indicates an OUTER Join condition.
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Ok here's my complete code....it's pretty big though...hope it's not too confusing.
It compiles fine if I take the new cursor out, so the error is somewhere in that cursor.
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     v_Courses VARCHAR2(6);
     v_Scores NUMBER;
     v_Grade CHAR;
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/****BEGIN MAIN BLOCK********/
BEGIN
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     LOOP
     FETCH c_GPAPerTerm INTO v_Terms,v_StudentID;
                  /*NEW CURSOR LOOP WILL GO HERE*/
               v_ScoresTotal := v_ScoresTotal + v_Scores;
                  v_GPA := calculate_gpa(v_ScoresTotal, 3);
               v_ScoresTotal :=0;
               DBMS_OUTPUT.PUT_LINE('Term: ' || v_Terms || '   GPA: ' || v_GPA);
     EXIT WHEN c_GPAPerTerm%NOTFOUND;
     END LOOP;
     CLOSE c_GPAPerTerm;
END get_Student_GPA;
/

From 10g, "SQL Statement Length" description disappeared....

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