When oracle uses a nested loop join full?
Hello!Oracle database uses a complete nested loop join? I mean, imagine 2 tables without any index... is there a case where Oracle made a full scan of the inner table for each row in the outer table? I know it's the original algorithm of the nested loop join, but some databases prefer to do a temp table to autoindex the internal table and never does a full scan of the inner table...
Thank you!!
http://download.Oracle.com/docs/CD/B10501_01/server.920/a96533/optimops.htm#49548
is 100% clear in its language. Simply click on it.
A nested loop join involves the following steps:
The optimizer determines the driving table and it designates as the outer table.
The other table is referred to as the inner table.
For each row in the outer table, Oracle access all rows from the inner table. The outer loop is for each row in the outer table, and the inner loop is for each line of the internal table. The outer loop appears before the inner loop in the execution plan, as follows:
NESTED LOOPS
outer_loop
inner_loop
Concerning
Girish Sharma
Tags: Database
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Set of characters not supported when the use of convert and join
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Could be a variant of bug 4686909.
First reported in 10.2.0.1 and fixed the 11.0.0.0
Bug text:
The following SELECT statement fails with ORA-1482:
Select d1.dummy
double D1
where
D1. In dummy (select Max (1) double D2 where d2.dummy = d1.dummy)
and convert (d1.dummy, 'al32utf8') = 'k '.-L' error ORA-1482 reproduced if we use a MAX or MIN function, but not if
other functions, for example, lower, upper, to_char, to_number serve
-L' error ORA-1482 does not reproduce if the subquery is not a correlation
subquery
-L' error ORA-1482 reproduced for any destination character set used in
the convert functionRelease notes:
Convert function used anywhere except the selection list has been to launch error-1482
There is a similar bug, bug 4746930, which suggests a work around:
WORKAROUND SOLUTION:
using CURSOR_SHARING = TRUE
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Published by: user8760008 on August 27, 2009 07:08 - I copied the script and do not add functions of aggregation on the selected columns...If this is the case, please try:
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Note that you should not all three tips to get the nested loops join plan. -
I have a nested loop
loop1 start
...
loop2 start
...
end loop2
...
end loop1
I want to know how can I come out the two loops of the inner loop.Hello
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SEL$A8B7A3F4 11 - SEL$A8B7A3F4 / D@SEL$13 23 - SEL$A8B7A3F4 / OH@SEL$1 24 - SEL$A8B7A3F4 / O@SEL$13 25 - SEL$A8B7A3F4 / O@SEL$13 26 - SEL$13512960 / DF@SEL$13 27 - SEL$13512960 28 - SEL$13512960 / DF1@SEL$14 29 - SEL$13512960 / DF1@SEL$14 30 - SEL$A8B7A3F4 / H7@SEL$2 31 - SEL$A8B7A3F4 / H7@SEL$2 32 - SEL$A8B7A3F4 / DS@SEL$9 33 - SEL$A8B7A3F4 / RST@SEL$11 34 - SEL$A8B7A3F4 / ITT@SEL$3 35 - SEL$A8B7A3F4 / ST@SEL$5 36 - SEL$A8B7A3F4 / PT@SEL$7 Outline Data ------------- /*+ BEGIN_OUTLINE_DATA IGNORE_OPTIM_EMBEDDED_HINTS OPTIMIZER_FEATURES_ENABLE('11.2.0.3') DB_VERSION('11.2.0.3') OPT_PARAM('optimizer_index_cost_adj' 20) ALL_ROWS OUTLINE_LEAF(@"SEL$13512960") PUSH_PRED(@"SEL$A8B7A3F4" "DF"@"SEL$13" 11) OUTLINE_LEAF(@"SEL$A8B7A3F4") ELIMINATE_JOIN(@"SEL$2D47CDEA" "DTT"@"SEL$13") OUTLINE(@"SEL$14") OUTLINE(@"SEL$A8B7A3F4") ELIMINATE_JOIN(@"SEL$2D47CDEA" "DTT"@"SEL$13") OUTLINE(@"SEL$2D47CDEA") MERGE(@"SEL$3FAACB6D") OUTLINE(@"SEL$15") OUTLINE(@"SEL$3FAACB6D") MERGE(@"SEL$11") MERGE(@"SEL$A1A6E401") OUTLINE(@"SEL$12") OUTLINE(@"SEL$11") OUTLINE(@"SEL$A1A6E401") MERGE(@"SEL$9") MERGE(@"SEL$BFB1842A") OUTLINE(@"SEL$10") OUTLINE(@"SEL$9") OUTLINE(@"SEL$BFB1842A") MERGE(@"SEL$7") MERGE(@"SEL$EEDE2B8C") OUTLINE(@"SEL$8") OUTLINE(@"SEL$7") OUTLINE(@"SEL$EEDE2B8C") MERGE(@"SEL$5") MERGE(@"SEL$A6B38458") OUTLINE(@"SEL$6") OUTLINE(@"SEL$5") OUTLINE(@"SEL$A6B38458") MERGE(@"SEL$171BE69E") MERGE(@"SEL$3") OUTLINE(@"SEL$4") OUTLINE(@"SEL$171BE69E") MERGE(@"SEL$AF02BF1E") OUTLINE(@"SEL$3") OUTLINE(@"SEL$2") OUTLINE(@"SEL$AF02BF1E") MERGE(@"SEL$13") OUTLINE(@"SEL$1") OUTLINE(@"SEL$13") FULL(@"SEL$A8B7A3F4" "OH"@"SEL$1") INDEX(@"SEL$A8B7A3F4" "O"@"SEL$13" ("OCRN"."ORG_PK" "OCRN"."DSCLR_DSCLB_FL" "OCRN"."DSCLR_RPTBL_FL")) BITMAP_TREE(@"SEL$A8B7A3F4" "D"@"SEL$13" AND(OR(1 1 ("DSCLR"."FORM_TYPE_CD") 2 ("DSCLR"."FORM_TYPE_CD")) ("DSCLR"."DSCLR_TYPE_CD"))) NO_ACCESS(@"SEL$A8B7A3F4" "DF"@"SEL$13") INDEX(@"SEL$A8B7A3F4" "H7"@"SEL$2" ("H760_RGLTY_ACTN_DSCLR"."FLNG_PK" "H760_RGLTY_ACTN_DSCLR"."DSCLR_PK" "H760_RGLTY_ACTN_DSCLR"."REC_SEQ_NB")) FULL(@"SEL$A8B7A3F4" "DS"@"SEL$9") FULL(@"SEL$A8B7A3F4" "RST"@"SEL$11") FULL(@"SEL$A8B7A3F4" "ITT"@"SEL$3") FULL(@"SEL$A8B7A3F4" "ST"@"SEL$5") FULL(@"SEL$A8B7A3F4" "PT"@"SEL$7") LEADING(@"SEL$A8B7A3F4" "OH"@"SEL$1" "O"@"SEL$13" "D"@"SEL$13" "DF"@"SEL$13" "H7"@"SEL$2" "DS"@"SEL$9" "RST"@"SEL$11" "ITT"@"SEL$3" "ST"@"SEL$5" "PT"@"SEL$7") USE_NL(@"SEL$A8B7A3F4" "O"@"SEL$13") NLJ_BATCHING(@"SEL$A8B7A3F4" "O"@"SEL$13") USE_HASH(@"SEL$A8B7A3F4" "D"@"SEL$13") USE_NL(@"SEL$A8B7A3F4" "DF"@"SEL$13") USE_NL(@"SEL$A8B7A3F4" "H7"@"SEL$2") NLJ_BATCHING(@"SEL$A8B7A3F4" "H7"@"SEL$2") USE_HASH(@"SEL$A8B7A3F4" "DS"@"SEL$9") USE_HASH(@"SEL$A8B7A3F4" "RST"@"SEL$11") USE_HASH(@"SEL$A8B7A3F4" "ITT"@"SEL$3") USE_HASH(@"SEL$A8B7A3F4" "ST"@"SEL$5") USE_HASH(@"SEL$A8B7A3F4" "PT"@"SEL$7") SWAP_JOIN_INPUTS(@"SEL$A8B7A3F4" "D"@"SEL$13") INDEX_RS_ASC(@"SEL$13512960" "DF1"@"SEL$14" ("DSCLR_FLNG"."DSCLR_PK" "DSCLR_FLNG"."BLLBL_FL")) END_OUTLINE_DATA */This plan gives you an idea of why your initial synchronization has been long - most of your readings are one-piece readings and you have read 53 724 blocks. If you estimate 1 centisecond by read (which could be on a reasonable charge system) then it is 537 seconds. to 5 milliseconds per read, it's still 268 seconds or 4 minutes and 30 seconds.
A quick break down of some (the worst case) potential time - only you can say whether or not some of these readings will be always/often/never being cached in the file or at the SAN level.
Line 11 - physical reads 6 400 done - it's a tree bitmap then the readings are in the order of physical table with no. rereads. Call 5ms by read-online 32 seconds. L
| * 11 | TABLE ACCESS BY INDEX ROWID | DSCLR | 1. 5079. 158K | 533 (1) | 00:00:08 | 91395 | 00:00:01.27 | 6460. 6400 | | | |
The hash join takes us from 6 400 to 11 788 because it joins, lines 21 to 25 (nested loop) in which most of the work is the random access table with some automatic caching: 26 seconds. Do a search here rather than indexed 22 000 access? Which would be faster, which would charge less.
| * 25. TABLE ACCESS BY INDEX ROWID | OCRN | 22050. 1. 21. 1 (0) | 00:00:01 | 21059 | 00:01:04.74 | 15634 | 5280. | | |
Three nested loops that introduce more readings:
11788 9-> 26386:14 600 of the predicate view pushed which some lies but a very large index and a table of random access 73 seconds
8 26386-> 33783:7 400 index line 30 - big clue about 37 seconds Access hides
33783 7-> 53691:19 900 31 table access - large table line, not much caching, 100 seconds.
In each case, you can ask if an analysis would take less time than all of these random reads.
NOTE - all I'm pointing our here where you potentially use a lot of time so that you can ask whether or not you should do little of the query in this way, or if there is an alternative, or if the work you're doing is absolutely necessary. If you want to optimize the query you should consider the intent of the query and think your way through a reasonable join order to see if you can imagine an effective way to get the same data. I have written a few articles and presentation on an approach that begins by drawing - here is a link to an article I wrote for a group of SQL Server: https://www.simple-talk.com/sql/performance/designing-efficient-sql-a-visual-approach/
and a video I did with Kyle Hailey, while he was working for Embarcadero:Tune in for the ultimate SQL Tune-off | Landing pages
Concerning
Jonathan Lewis
-
Join external condition bug/feature when you use a RC?
First I picked up on this bug/feature in an article in the blog of Armstrong ([http://learndiscoverer.blogspot.com/2008/05/using-case-to-solver-outer-join-issues.html])
It seems that when you use an OR condition in Disco as well as 10 g, it ignores the join on the table conditions...
I've included the two reports the SQL code to illustrate my point:
Here is the SQL code generated when I agree with the point of view, you will notice the outer join (i.e. "(+)" ")
SELECT O100288. UNIQUE_ID, O100291. UNIQUE_ID
OF ODSTHING. TABLE1: O100288, ODSTHING. O100291 FROM TABLE2
WHERE ((O100291. UNIQUE_ID = O100288. UNIQUE_ID (+)))
;
Here's what happens if I simply add that a condition is not null. Notice the outer join on the 'IS NOT NULL' which allows to do nothing
SELECT O100288. UNIQUE_ID, O100291. UNIQUE_ID
OF ODSTHING. TABLE1: O100288, ODSTHING. O100291 FROM TABLE2
WHERE ((O100291. UNIQUE_ID = O100288. UNIQUE_ID (+))) AND (O100288. UNIQUE_ID (+) IS NOT NULL)
;
This is what happens when I have AND the same condition with himself, he remains outside joined
SELECT O100288. UNIQUE_ID, O100291. UNIQUE_ID
OF ODSTHING. TABLE1: O100288, ODSTHING. O100291 FROM TABLE2
WHERE ((O100291. UNIQUE_ID = O100288. UNIQUE_ID (+))) AND (((O100288. UNIQUE_ID (+) IS NOT NULL AND O100288. UNIQUE_ID (+) IS NOT NULL)))
;+
Here's what happens if I have the same CONDITION with himself. MAGIC! The outer join disappears!
SELECT O100288. UNIQUE_ID, O100291. UNIQUE_ID
OF ODSTHING. TABLE1: O100288, ODSTHING. O100291 FROM TABLE2
WHERE ((O100291. UNIQUE_ID = O100288. UNIQUE_ID (+))) AND (((O100288. UNIQUE_ID IS NOT NULL OR O100288. UNIQUE_ID IS NOT NULL)))
;
Is it the way it is supposed to work? If it is then I don't see any trace of it in the documentation ([http://download.oracle.com/docs/html/B13915_04/conditions.htm])
Is it just a useful bug?
What people think about its use?
Published by: user4404031 on Sep 12, 2008 08:23Hello
It is documented (http://download.oracle.com/docs/html/B13916_04/conditions.htm#sthref854) that the discoverer does not use outer joins with IN and OR conditions. But the implications of this are not stated. The documentation never tries to explain the underlying SQL.
Rod West
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Hello ronbn1, while you are on youtube.com, make a right click on a blank spot on the page, go to view page info > permissions and re - activate the approval of full screen in the list.
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It is a problem specific to Oracle Web Logic EM.
In our society, we use the logical Web as a basis for the application server.
In the EM logic web server, users can use a Web Logic EM (EM is a portal to view processes on Web Logic application) to verify the data.
I found when I use EM to check online XML, sometimes the page does not appear the scroll bar.
If I use Google Chrome or Opera, and do the same thing, the page will display scroll bar.
But I need Firefox because it is my main browser.
How to overcome this issues?
And how to prove?Hello, cor - el
Please, please read this thread first:
https://support.Mozilla.org/en-us/questions/976345I found there is that some people have the same problems.
I check the data of the source code viewer, the data displayed are "pure XML.
So my question is "pop-up windows display XML data in Firefox.
I searched the KB and found an expert suggests a whole 'dom.disable_window_open_feature.scrollbars', 'true '.
This solution not solve my problem.
And thank you once again, cor - el.
I can give up google chrome forever.
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I can only access buttons of menu on the first line when I use mode full-screen, why?
Many Web sites I visit have on the first line of the web page in a series of menu options that do not respond when I move the mouse to select options. If I use the mode full screen these buttons work correctly. These buttons work correctly when I use IE or Chrome. I am running Windows 7 and this has happened in the last two weeks.
Recently, the extension of the Yahoo! toolbar and the extension of Babylon have been reported to cause a problem like that. Disable or uninstall the modules.
* https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
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Tecra M5 - crashes when you use the docking station - fan at full power but no start the thread
Hi all
As I say, I have intermittent problems where the machine crashes when you use the docking station. Sometimes at the beginning of the startup of windows then stalls and powers of fan at full power. If I take off the base of the machine, it works fine.
I bought this machine because I had one in my previous job and he had found great. However, my only previous also had this problem sometimes when lashing...
Any assistance received very warmly.
Thank you!
Hello
Stand by. You have noticed this behavior when the laptop is OFF, connect to the docking station and after doing this you turn. Am wrong me or have I misunderstood something?
Maybe's external screen connected to the docking station?
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Need help for the conversion of the nested loops to use the stream
I'm trying to teach me how to effectively use the java stream, but finds it difficult to find the correct syntax for a problem of nested loop. I would like to convert the following code to use the Java 8 stream instead of nested loops. Can anyone provide an example or a solution?
/** * Return all members of stringListOne that begin with any of the strings in * stringListTwo * * @return all members of stringListOne that begin with any of the strings in * stringListTwo */ Set<String> getFilteredStrings(Set<String> stringListOne, Set<String> stringListTwo) { Set<String> stringListOneFiltered = new HashSet<String>(); for (String next : stringListOne) { for (String nextPrefix : stringListTwo) { if (next.startsWith(nextPrefix)) { stringListOneFiltered.add(next); } } } return stringListOneFiltered; }Here's a test case for the above code:
/** * Test method for {@link scratchpad.MyClass#getFilteredStrings(java.util.Set, java.util.Set)}. */ @Test public final void testGetFilteredStrings() { MyClass uut = new MyClass(); Set<String> stringListOne = new HashSet<String>(); stringListOne.add("until"); stringListOne.add("unite"); stringListOne.add("under"); stringListOne.add("prepare"); stringListOne.add("pretend"); stringListOne.add("prefix"); stringListOne.add("prepend"); stringListOne.add("post"); stringListOne.add("positive"); stringListOne.add("postgame"); stringListOne.add("postpone"); Set<String> stringListTwo = new HashSet<String>(); stringListTwo.add("post"); stringListTwo.add("pre"); stringListTwo.add("und"); Set<String> result= uut.getFilteredStrings(stringListOne, stringListTwo); System.out.println(result); assertEquals(8, result.size()); }Thanks for any help you can provide! I get the hang of using the course of water, but this particular code was difficult.
tmbc
I found the following solution to my question:
GetFilteredStrings (Set stringListOne, the value {Set
stringListTwo) Predicate startsWith
= p-> stringListTwo.stream () .anyMatch (prefix-> p.startsWith (prefix)); Return stringListOne.stream () .filter (startsWith) .collect (Collectors.toSet ());
}
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Why Oracle ManagedDataAccess (4.121.1.0) throws a System.FormatException "first chance" exception to the debugger when you use OracleCommand.BindByName (on some machines, but not others)?
This occurs when calling a ref cursor-returning packaged function stored with OracleCommand.BindByName set to true.
When BindByName undefined, it works as expected.
I've only been able to recreate this problem on a machine in my control. This issue has also reported to me by a customer.
I tried to change the locale of the system of EN - UK EN-US, but I was not aware of any change in behavior.
Similarly, I've tried explicitly overriding the default locale of the system with the OracleGlobalization parameters, and it also had no effect.
Please see the example below.
---
Environment (default):
Windows 7 Professional 64-bit SP1
Visual Studio 12.0.21005.1 REL / / CAN BE SIGNIFICANT
.NET framework 4.5.51209
Local system: EN - UK (but also does not, EN-US).
Oracle.ManagedDataAccess 4.121.1.0
"< supportedRuntime version ="v4.0"sku =". NETFramework,Version=v4.5.1"/ >
Environment (base):
Windows 7 Professional 64-bit SP1
Updated Visual Studio 12.0.31101.00 //SEE above 4
.NET framework 4.5.51209
Local system: EN - UK
Oracle.ManagedDataAccess 4.121.1.0
"< supportedRuntime version ="v4.0"sku =". NETFramework,Version=v4.5.1"/ >
Call stack:
mscorlib.dll. Unknown System.Number.StringToNumber(string str, System.Globalization.NumberStyles options, ref System.Number.NumberBuffer number, System.Globalization.NumberFormatInfo info, bool parseDecimal) mscorlib.dll. Unknown System.Number.ParseInt32(string s, System.Globalization.NumberStyles style, System.Globalization.NumberFormatInfo info) Oracle.ManagedDataAccess.dll! Oracle.ManagedDataAccess.Types.OracleRefCursor.OracleRefCursor (connection Oracle.ManagedDataAccess.Client.OracleConnection, OracleInternal.ServiceObjects.OracleRefCursorImpl refCursorImpl, Oracle.ManagedDataAccess.Types.OracleIntervalDS sessionTimeZone, string commandText, string paramPosOrName, long initialLongFS, long initialLobFS, long [] scnFromExecution) unknown Oracle.ManagedDataAccess.dll! OracleInternal.ServiceObjects.OracleParameterImpl.ExtractRefCursorFromAccessor (Oracle.ManagedDataAccess.Client.OracleConnection conn, accessor OracleInternal.TTC.Accessors.Accessor, long fetchSize, Oracle.ManagedDataAccess.Client.PrmEnumType enumType, Oracle.ManagedDataAccess.Types.OracleIntervalDS sessionTimeZone, string commandText, string paramPosOrName, long longFetchSize, long lobFetchSize, long [] scnFromExecution, int currentRow) unknown Oracle.ManagedDataAccess.dll! OracleInternal.ServiceObjects.OracleParameterImpl.GetRefCursorFromBytes unknown (Oracle.ManagedDataAccess.Client.OracleConnection conn, accessor OracleInternal.TTC.Accessors.Accessor, long fetchSize, Oracle.ManagedDataAccess.Client.PrmEnumType enumType, Oracle.ManagedDataAccess.Types.OracleIntervalDS sessionTimeZone, string commandText, string paramPosOrName, long longFetchSize, long lobFetchSize, long [] scnFromExecution) Oracle.ManagedDataAccess.dll! Oracle.ManagedDataAccess.Client.OracleParameter.PostBind_RefCursor (connection Oracle.ManagedDataAccess.Client.OracleConnection, OracleInternal.TTC.Accessors.Accessor bindAccessor, long fetchSize, Oracle.ManagedDataAccess.Types.OracleIntervalDS sessionTimeZone, string commandText, string paramPosOrName, long longFetchSize, long lobFetchSize, long [] scnFromExecution) unknown Oracle.ManagedDataAccess.dll! OracleInternal.ServiceObjects.OracleCommandImpl.ExtractAccessorValuesIntoParam (Oracle.ManagedDataAccess.Client.OracleParameterCollection paramColl, Oracle.ManagedDataAccess.Client.OracleConnection connection, string commandText, long longFetchSize, long lobFetchSize, long [] scnFromExecution) unknown Oracle.ManagedDataAccess.dll! Unknown Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader(bool requery, bool fillRequest, System.Data.CommandBehavior behavior) Oracle.ManagedDataAccess.dll! Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader (unknown) > ManagedSimpleRefCursor1.exe! NoddyConsole.Program.Command_ExecuteReader_BindByName_Fails (Line 63 c#)
Example:
----
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Oracle.ManagedDataAccess.Client;
using Oracle.ManagedDataAccess.Types;
using System.Data;
namespace NoddyConsole
{
public class Program
{
public static int Main (string [] args)
{
Error int = 0;
Errors += Command_ExecuteReader_BindByName_Fails();
Errors += UseReturnValue_Command_ExecuteNonQuery_BindByName_Fails();
return errors;
}
public static int Command_ExecuteReader_BindByName_Fails()
{
Error int = 0;
Try
{
var conn = new OracleConnection ("UID = USER; Password = PASS; ("Data Source = / / your-host: 1521 / yours-sid");
var conn = new OracleConnection ("user Id = UNIT620; Password = UNIT620; ("Data Source = / / ln1apidb01:1521 / fm");
Conn. Open();
IRRELEVANT
OracleGlobalization og is conn. GetSessionInfo();
og. DateFormat = "HH24:MI:SS MON-DD-YYYY";
Conn. SetSessionInfo (og);
var cmd is conn. CreateCommand();
cmd.CommandType = CommandType.Text;
BindByName. cmd = true;
cmd.CommandText = "START: rc: = SHAUN.recreate_issue_1 (in_code = >: in_code); END; « ;
var prm1 is cmd. CreateParameter();
PRM1. ParameterName = "rc";
PRM1. Direction = ParameterDirection.ReturnValue;
PRM1. OracleDbType = OracleDbType.RefCursor;
cmd. Parameters.Add (prm1);
/ * SHAUN.recreate_issue_1 * /.
var prm2 is cmd. CreateParameter();
PRM2. ParameterName = "in_code";
PRM2. Direction = ParameterDirection.Input;
PRM2. OracleDbType = OracleDbType.Varchar2;
PRM2. Value = "A";
cmd. Parameters.Add (prm2);
/* */
var reader is cmd. ExecuteReader(); FAILS to System.Number.StringToNumber (String str, NumberStyles options, NumberBuffer & number, NumberFormatInfo info, Boolean parseDecimal)
/* *-/
OracleRefCursor orc = null;
cmd ExecuteNonQuery()); must fail here
ORC = cmd. Parameters ["rc"]. Value as OracleRefCursor;
If (orc is nothing)
throws InvalidOperationException new ("Invalid return the ref cursor type");
var = orc player. GetDataReader();
/* */
While (reader. Read
{
var values = new object [reader. FieldCount];
drive. GetOracleValues (values);
for (int i = 0; i < values.) Length; (++ I)
{
Console.WriteLine(values[i]);
}
}
drive. Dispose();
cmd. Dispose();
Conn. Dispose();
}
catch (Exception ex)
{
Console.Error.WriteLine (ex) Message);
Errors ++;
}
Finally
{
Return (true);
}
return errors;
}
public static int UseReturnValue_Command_ExecuteNonQuery_BindByName_Fails()
{
Error int = 0;
Try
{
var conn = new OracleConnection ("UID = USER; Password = PASS; ("Data Source = / / your-host: 1521 / yours-sid");
Conn. Open();
IRRELEVANT
OracleGlobalization og is conn. GetSessionInfo();
og. DateFormat = "HH24:MI:SS MON-DD-YYYY";
Conn. SetSessionInfo (og);
var cmd is conn. CreateCommand();
BindByName. cmd = true; // ####
cmd.CommandText = "START: rc: = SHAUN.recreate_issue_1 (in_code = >: in_code); END; « ;
cmd.CommandText = "START: rc: = SHAUN.recreate_issue_2; END; « ; No params, works
var prm1 is cmd. CreateParameter();
PRM1. ParameterName = "rc";
PRM1. Direction = ParameterDirection.ReturnValue;
PRM1. OracleDbType = OracleDbType.RefCursor;
cmd. Parameters.Add (prm1);
/ * SHAUN.recreate_issue_1 * /.
var prm2 is cmd. CreateParameter();
PRM2. ParameterName = "in_code";
PRM2. Direction = ParameterDirection.Input;
PRM2. OracleDbType = OracleDbType.Varchar2;
PRM2. Value = "A";
cmd. Parameters.Add (prm2);
/* */
var reader is cmd. ExecuteReader();
OracleRefCursor orc = null;
HERE does NOT cmd. BindByName = true; System.FormatException first-chance exception in at System.Number.StringToNumber (String str, NumberStyles options, NumberBuffer & number, NumberFormatInfo info, Boolean parseDecimal)
cmd ExecuteNonQuery());
ORC = cmd. Parameters ["rc"]. Value as OracleRefCursor;
If (orc is nothing)
throws InvalidOperationException new ("Invalid return the ref cursor type");
var = orc player. GetDataReader();
While (reader. Read
{
var values = new object [reader. FieldCount];
drive. GetOracleValues (values);
for (int i = 0; i < values.) Length; (++ I)
{
Console.WriteLine(values[i]);
}
}
drive. Dispose();
ORC. Dispose();
cmd. Dispose();
Conn. Dispose();
}
catch (Exception ex)
{
Console.Error.WriteLine (ex) Message);
Errors ++;
}
Finally
{
Return (true);
}
return errors;
}
}
}
---
create or replace package THAT SHAUN is
type ref_cur_type is ref cursor;
function recreate_issue_1)
in_code varchar2: = null
) return ref_cur_type;
end SHAUN;
/
create or replace package body what SHAUN
-TTS000233
function recreate_issue_1)
in_code varchar2: = null
) return ref_cur_type is ref_cur ref_cur_type;
Start
Open the ref_cur for
Select UO.object_name from user_objects UO;
Return ref_cur;
end recreate_issue_1;
end SHAUN;
/
---
Thanks a lot to qualify again for me Alex. I'll try upgrading to the latest version of the provider.
The difference in behavior between the two hosts was found to be reduced to differences in configuration VS.
Checking 'Just my code' prevents the first chance thrown in the debugger exception. As in fact, the exception is handled in the provider, it is enough for me.
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