Invalid BLOB handle in record buffer.

[DeadWolf]

DataSet.Open 后

DataSet.Last();
DataSet.First();

出现 Invalid BLOB handle in record buffer.异常

[DeadWolf]

自己顶一下

[windwather]

dataset.last;
dataset.first;

[firetoucher]

看看
http://expert.csdn.net/Expert/topic/1830/1830799.xml?temp=.9957239

[DeadWolf]

to firetoucher(风焱)
Delphi 6 Update Pack 2 你下了吗？

你知道哪里有下么

[DeadWolf]

继续up

[sunssc]

以下从
http://info.borland.com/devsupport/delphi/fixes/delphi601/index.html
拷贝,详细资料可自己察看,仅将修复的问题列表如下

--------------------------------------------------------------------------数据库方面:
--------------------------------------------------------------------------Any use of the new
TCustomADODataSet.OnRecordsetCreate event
causes an "Invalid variant type conversion"
exception.
------
A problem occurs when opening a form in the IDE
that has a TADOQuery. If the query is active, and if
the connection is no longer valid, the IDE closes
without any warning.
------
The same occurs if a form with an active
TADOQuery is created before the datamodule that
contains the associated TADOConnection.
------
Opening a ADOquery in Delphi 6 is much slower
then it was in Delphi 5 because of extra calls to the
F.Properties for "every" field in the RecordSet
regardless of the "already" determined FieldType.
------
BcdCompare(0, 0) yields wrong result. Variant
comparison of BCD zeroes fails.
------
BcdToStr doesn't work correctly when precision
and
scale are the same. eg) 0.123 incorretly changes to
123
------
Call IsNull on a blob field causes AV
------
Trying to get blob at eof (as with an empty table)
results in an EOF error.
------
SQLDataSet.Refresh causes memory loss.

--------------------------------------------------------------------------ActiveX方面
--------------------------------------------------------------------------Some type libraries have array properties that aren't
being generated properly.
------
The imported MS HTML library fails to compile
------
An inconsistent use of underscore on Set method in
generated code when using TLE to add Write by
Ref property results in compile error
------
When adding a method with params of different
types to a COM+ Event interface the generated
code will not compile.

--------------------------------------------------------------------------IDE方面:
--------------------------------------------------------------------------
Reproducible Access Violations occur in the IDE
when declarations of the following type are included
at global scope in a unit:

const
A: set of Char = ('a','b','c');
------
Marking a unit as 'platform', 'deprecated' or 'library'
messes up the IDE's parser
------
Mouse over the Diagram tab results in a series of
access violations if the Package source is open in
the Code Editor. The AV's happen as long as the
mouse is over the diagram.
------
Diagram view on the TypeLibrary Unit AVs

--------------------------------------------------------------------------InterNet方面:
--------------------------------------------------------------------------
D6 broke TagParams by checking for #13#10 as a
tag param terminator.
------
Isapi dll's leak memory. After a while, it will crash the
server.
------
QualifyFileName function in WebComp unit is not
threadsafe.
------
IsConsole is incorrectly being set for ISAPI DLL
projects. This can cause a problem with any
WebSnap applications which allow exceptions to
escape from their over-ridden handlers.
------
When OnAfterDispatchPage is assigned you will
get an Access Violation in xxxxx read of address
0000000.
------
TCustomAdapterImageField.GetValue returns False
instead of '' when EchoActionFieldValue is set and
no value if found in the request.
------
RedirectToPageName causes AV if AParams
parameter is nil
------
Can't save an include file after previewing a page
that uses it.
------
The following VBScript statement always evaluates
to false.

< % if IsNull(EndUser.Login) then ... % >
------
'MSXML is not installed' is a error that may be raised
even if the MSXML dll has been installed. For
instance if CoInitialize has not been called the
above error will surface.
------
XML Data Binding Wizard cannot correctly import a
DTD file where attribute defaults are defined using
single quotes.

--------------------------------------------------------------------------MIDAS方面:
--------------------------------------------------------------------------
ClientDataSet.SetOptionalParam is causing an
exception when value is not a datetime string.
------
XML Mapper fails selecting nodes when the source
XML file contains DBCS < xx5B > in a element
name.
------
Opening an XML-Schema in XMLMapper does not
extract the type-information . This is important when
trying to create a Midas-datapacket, or MyBase
database from the schema.

--------------------------------------------------------------------------RTL方面:
--------------------------------------------------------------------------
VarArray's do not work. VarArray data was not
being copied during an assignment. Only a
reference to the data was being copied. The VType
in the TVarData did not indicate that it was a
varByRef variant.
------
StrToBool does not accept "False" and "True" as
boolean data. This is due to TryStrToBool being
broken.
------
SearchBuf does not locate a match if the target
pattern of characters occurs at the beginning of the
string being searched.
------
Concatenating AnsiStrings fails in
System._LStrCatN when the new "append"
optimization kicks in.

Results in garbage being appended - the "can we
append" detection does not work correctly.

--------------------------------------------------------------------------SOAP方面:
--------------------------------------------------------------------------
Array of byte is not transfered in base64 encoding.
------
TXSDate.XSToNative and
TXSDateTime.GetAsDateTime both use strings
which presume MM/DD/YYYY order when call
date functions.
------
IntFromValue function does not check for blank
string, resulting in AV when blank string is passed.
------
MS does not import our WSDL documents,
because we are not namespace qualifying some
elements in the service/port elements.
------
WSDL Exporter does not allow targetnamespace to
be set, always defaults to borland specific URI
------
SOAP URI is incorrect
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soa
p"
should be
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soa
p/"
------
Make the targetNamespace for WSDL generated
as a property so that users can set it. Currently its
"http://www.borland.com/soapServices"

--------------------------------------------------------------------------VCL方面:
--------------------------------------------------------------------------
TStaticListAction does not get it's ItemIndex
property set when the action is executed.
------
TSearchFindNext action fails to find text. There is a
bug in TSearchFindNext.Execute where it does not
assign the Target and therefore will never find any
text.
------
It's not possible to assign events of the
subcomponents of the following actions: TPringDlg,
TColorSelect, TFontEdit, TSearchFind,
TSearchReplace.
------
Adding a category of actions causes items to be
drawn overlapping each other.
------
List Category of Standard Actions do not render
properly on Action Bar - the comboboxes are
overlapping the text.
------
Resize a TActionToolbar which orientation is
obBottomToTop will cause a AV:

Access violation at address xxxx im module
'rtl60.bpl'
------
If the menu show delay is set to 0 then menus
should appear immediately but in ActionBands this
causes you to have to click a menu item prior to it
being displayed.
------
Submenus display before the first item is selected
which is inconsistent with standard windows menus.
------
Setting individual colors for items on a submenu fails
to draw the items with that color.
------
AV occurs clicking the dropdown button of a
TActionToolBar

[DeadWolf]

这份我已经看过了
但是下载要注册用户(我是盗版用户)
并且我机器上打不开下载页面，超级气愤！

不过还是谢谢

[DeadWolf]

半个小时顶一次

[DeadWolf]

不要这样嘛
GGJJDDMM

[zlyanyan]

up

[DeadWolf]

BLOBS TO CACHE Determines how many BLOBs will be cached on the client. Applications that deal with fetching dead BLOBs using dead table opens or queries can set a limit on the number of BLOBs to cache depending on the resource available on the client.

Setting a value of 100 means the application can work with a maximum of 100 BLOB records cached. Fetching more than 100, then scrolling back 100 records results in an "Invalid Blob handle in record buffer" error message. This parameter does not apply to live table opens. Default Value: 64, Range : >64 and < 65536.

我把BDE的BLOBS TO CACHE 设成了10000还是不行。
在调用First时出现“Invalid Blob handle in record buffer”。

谢谢zlyanyan(zl)

[DeadWolf]

麻烦进来看过的兄弟

帮忙UP

都快绝望了！
实在不行，月底结贴

[lqy661]

我也遇到过，快来帮忙啊！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！

[lqy661]

我把bde的：blob size 和 blobs to cache 改大一点，竟然好了！
你可以试一试

[DeadWolf]

同病相怜