Доступ к данным
01.01.2007
Each function listed below accesses data in a table, such as retrieving data from a specified BLOB field or from the record buffer.
- 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.

