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activex_data_objects thread: How to retrieve the TABLE NAME of the database I am reading?
Message #1 by "yinmos" <yinmos@y...> on Mon, 24 Sep 2001 19:02:45
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I am writing a program that will read a unknown database of unknown Table
Name. Is there any possible way that i can retrieve all the table names in
the database? Fields name is need also.
Message #2 by "Tomm Matthis" <matthis@b...> on Tue, 25 Sep 2001 08:29:32 -0400
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Look into using ADOX ... it will do what you need.
-- Tomm
> -----Original Message-----
> From: yinmos [mailto:yinmos@y...]
> Sent: Monday, September 24, 2001 7:03 PM
> To: ActiveX_Data_Objects
> Subject: [activex_data_objects] How to retrieve the TABLE NAME of the
> database I am reading?
>
>
> I am writing a program that will read a unknown database of unknown Table
> Name. Is there any possible way that i can retrieve all the table
> names in the database? Fields name is need also.
Message #3 by Thomas Bellavia <TBellavia@V...> on Tue, 25 Sep 2001 11:03:32 -0400
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Here is just a snippet of code to peruse...
// Instantiate connection interface object
SAFE_CALL(pConnection.CreateInstance(__uuidof(Connection)));
// Instantiate recordset interface object
SAFE_CALL(pRstSchema.CreateInstance(__uuidof(Recordset)));
// Clear errors collection for connection object
SAFE_CALL(pConnection->Errors->Clear());
// Open database schema to establish content before accessing
individual tables and rows
TRACE0((LPSTR)bstrconnectstring);
TRACE0("\n");
SAFE_CALL(pConnection->Open(bstrconnectstring,"","",adConnectUnspecified));
// Open schema to query for table names
pRstSchema = pConnection->OpenSchema(adSchemaTables);
// Retreive MDAC Version Information for registry
variant_t vtVersion = (bstr_t)pConnection->Version;
bstr_t bstrProviderVersion = bstr_t(vtVersion);
cProviderVersion = (LPCWSTR)bstrProviderVersion;
table_count = 0;
// Get names of tables...
while(!(pRstSchema->EndOfFile))
{
// Get table name
bstrTablename
(bstr_t(pRstSchema->Fields->GetItem("TABLE_NAME")->Value));
// Get table type
bstrTabletype
(bstr_t(pRstSchema->Fields->GetItem("TABLE_TYPE")->Value));
// Only store "TABLE" fields for data extraction
if(_stricmp(_strupr((LPSTR)bstrTabletype),"TABLE") == 0)
Do something...
} // if(_stricmp(_strupr((LPSTR)bstrTabletype),"TABLE") == 0)
// Advance to next field
if(!(pRstSchema->EndOfFile))
pRstSchema->MoveNext();
};/*while(){}*/
etc...
-----Original Message-----
From: yinmos [mailto:yinmos@y...]
Sent: Monday, September 24, 2001 3:03 PM
To: ActiveX_Data_Objects
Subject: [activex_data_objects] How to retrieve the TABLE NAME of the
database I am reading?
I am writing a program that will read a unknown database of unknown Table
Name. Is there any possible way that i can retrieve all the table names in
the database? Fields name is need also.
Message #4 by "Belina, Jeff" <JBELINA@t...> on Thu, 27 Sep 2001 15:53:06 -0400
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Here's a recent article that goes along with Thomas Bellavia's code
snippets...
VB Q&A - Much "ADO" about field properties
http://www.techrepublic.com/article.jhtml?id=r00820010813adm01.htm&fromtm=e0
46
Thanks,
Jeff M. Belina
MCP, MCSD, MCDBA, MCSE, MSS, i-Net+
Database Administrator, DDBA
Moderator of the MCDBA Discussion List
http://ls.swynk.com
-----Original Message-----
> From: yinmos [mailto:yinmos@y...]
> Sent: Monday, September 24, 2001 7:03 PM
> To: ActiveX_Data_Objects
> Subject: [activex_data_objects] How to retrieve the TABLE NAME of the
> database I am reading?
>
>
> I am writing a program that will read a unknown database of unknown Table
> Name. Is there any possible way that i can retrieve all the table
> names in the database? Fields name is need also.
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