Ora8LobRead Function

Action

Reads a portion of a LOB/FILE, as specified by the call.

Include file

Ora8.bdh

Syntax

Ora8LobRead( in  hSvcCtx       : number,
             in  hLobLoc       : number,
             in  nSizeOfPieces : number,
             in  nSizeToRead   : number,
             in  nStartOffset  : number,
             in  nCharsetID    : number optional,
             in  nCharsetForm  : number optional,
             out nCntRead      : number optional ) : boolean;

Return value

true if successful
false otherwise.

Parameter	Description
hSvcCtx	The service context handle.
hLobLoc	A LOB/FILE locator that references the LOB/FILE.
nSizeOfPieces	Size of pieces to read.
nSizeToRead	Cumulated size to read.
nStartOffset	Start offset for first piece.
nCharsetID	Charset ID (optional).
nCharsetForm	Charset form (optional).
nCntRead	Count read (optional).

Example

var
  ghEnv0        : number;
  ghError0      : number;
  ghStmt0       : number;
  ghSvcCtx0     : number;
  ghDescriptor0 : number;

dcltrans
  transaction TMain
  begin
    Ora8Init(ghEnv0, OCI_DEFAULT);
    Ora8HandleAlloc(ghEnv0, ghError0, OCI_HTYPE_ERROR);
    Ora8Logon(ghEnv0, ghSvcCtx0, "user", "password", "orclnet2");

    ...
          
    Ora8LobRead(ghSvcCtx0, ghDescriptor0, 500, 30000, 0);

    ...

    Ora8Logoff(ghSvcCtx0);
    Ora8HandleFree(ghError0, OCI_HTYPE_ERROR);
    Ora8HandleFree(ghEnv0, OCI_HTYPE_ENV);
  end TMain;

Ora8LobRead Function

Action

Include file

Syntax

Return value

Example

See also