Odie
asked on
Databases, Blob - How do I access?
How can I access my Blob Field I created. I want to store/retrieve 1024 Bytes. But I just seem to be too clumsy too store or retrieve anything from it (newbie-experience).
I'm working with C++B 3 on a Paradox 7 Table.
Thx
I'm working with C++B 3 on a Paradox 7 Table.
Thx
ASKER
Um... I should have mentioned that I'm using the BDE too. But I'm too stupid too handle the TBlobField.
MyTable->FieldByName("MyBl obField")- >...
then what do I do with this?
MyTable->FieldByName("MyBl
then what do I do with this?
I'll look into it!! Do you use the frameworks code generator?
ASKER
I don't know what it is. (Guess I don't then.)
I'll take a look this weekend... oh i forgot I am going to be out of town this weekend. I guess I have to wait until monday. HOpefully someone else will beat me and post your answer here.
In the mean time take a look at any of these functions in your documentation:
DbiAppendRecord: Appends a record to the end of the table associated with the given cursor.
DbiDeleteRecord: Deletes the current record of the given cursor.
DbiFreeBlob: Closes the BLOB handle located within the specified record buffer.
DbiGetBlob: Retrieves data from the specified BLOB field.
DbiGetBlobHeading: Retrieves information about a BLOB field from the BLOB heading in the record buffer.
DbiGetBlobSize: Retrieves the size of the specified BLOB field in bytes.
DbiGetField: Retrieves the data contents of the requested field from the record buffer.
DbiGetFieldDescs: Retrieves a list of descriptors for all the fields in the table associated with the cursor.
DbiGetFieldTypeDesc: Retrieves a description of the specified field type.
DbiInitRecord: Initializes the record buffer to a blank record according to the data types of the fields.
DbiInsertRecord: Inserts a new record into the table associated with the given cursor.
DbiModifyRecord: Modifies the current record of table associated with the cursor with the data supplied.
DbiOpenBlob: Prepares the cursor's record buffer to access a BLOB field.
DbiPutBlob: Writes data into an open BLOB field.
DbiPutField: Writes the field value to the correct location in the supplied record buffer.
DbiReadBlock: Reads a specified number of records (starting from the next position of the cursor) into a buffer.
DbiSaveChanges: Forces all updated records associated with the cursor to disk.
DbiSetFieldMap: Sets a field map of the table associated with the given cursor.
DbiTruncateBlob: Shortens the size of the contents of a BLOB field, or deletes the contents of a BLOB field from the record, by shortening it to zero.
DbiUndeleteRecord: Undeletes a dBASE record that has been marked for deletion (a "soft" delete).
DbiVerifyField: Verifies that the data specified is a valid data type for the field specified, and that all validity checks in place for the field are satisfied. It can also be used to check if a field is blank.
DbiWriteBlock: Writes a block of records to the table associated with the cursor.
In the mean time take a look at any of these functions in your documentation:
DbiAppendRecord: Appends a record to the end of the table associated with the given cursor.
DbiDeleteRecord: Deletes the current record of the given cursor.
DbiFreeBlob: Closes the BLOB handle located within the specified record buffer.
DbiGetBlob: Retrieves data from the specified BLOB field.
DbiGetBlobHeading: Retrieves information about a BLOB field from the BLOB heading in the record buffer.
DbiGetBlobSize: Retrieves the size of the specified BLOB field in bytes.
DbiGetField: Retrieves the data contents of the requested field from the record buffer.
DbiGetFieldDescs: Retrieves a list of descriptors for all the fields in the table associated with the cursor.
DbiGetFieldTypeDesc: Retrieves a description of the specified field type.
DbiInitRecord: Initializes the record buffer to a blank record according to the data types of the fields.
DbiInsertRecord: Inserts a new record into the table associated with the given cursor.
DbiModifyRecord: Modifies the current record of table associated with the cursor with the data supplied.
DbiOpenBlob: Prepares the cursor's record buffer to access a BLOB field.
DbiPutBlob: Writes data into an open BLOB field.
DbiPutField: Writes the field value to the correct location in the supplied record buffer.
DbiReadBlock: Reads a specified number of records (starting from the next position of the cursor) into a buffer.
DbiSaveChanges: Forces all updated records associated with the cursor to disk.
DbiSetFieldMap: Sets a field map of the table associated with the given cursor.
DbiTruncateBlob: Shortens the size of the contents of a BLOB field, or deletes the contents of a BLOB field from the record, by shortening it to zero.
DbiUndeleteRecord: Undeletes a dBASE record that has been marked for deletion (a "soft" delete).
DbiVerifyField: Verifies that the data specified is a valid data type for the field specified, and that all validity checks in place for the field are satisfied. It can also be used to check if a field is blank.
DbiWriteBlock: Writes a block of records to the table associated with the cursor.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Go to http://www.inprise.com/searchsite/
and enter 'Frameworks' and check the Borland Database Engine checkbox
Then press search.