Доступ к данным
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.
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