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C++Builder Database Architecture
Property Description
UpdateMode Determines the type of SQL used to perform data changes.
UpdateObject Specifies the UpdateSQL component to use in conjunction with
cached updates.
Table 12.12. TQuery key methods.
Method Function
Append Appends a blank row to the TDataset.
AppendRecord Appends a row to the TDataset using specified values.
ApplyUpdates Saves cached updates to the database.
Cancel Discards pending modifications to the current row.
CancelUpdates Discards cached updates that are pending.
ClearFields Sets the current row’s fields to their default values.
Close Closes the TDataset.
Delete Deletes the current record.
Edit Puts the TDataset in edit mode.
ExecSQL Executes the SQL without returning a cursor.
FetchAll Reads all pending rows from a database server connection.
FieldByName Returns a TField using its database field name.
FindKey Performs an exact search on the TDataset.
GetFieldNames Returns a list of the fields in the TDataset.
Insert Inserts a blank row and allows it to be edited.
InsertRecord Inserts a row using supplied column values.
Locate Finds a record in a TDataset.
Lookup Finds a record in a TDataset and returns values from it.
MoveBy Moves the TDataset cursor by a given number of rows.
Open Opens the TDataset.
ParamByName Returns a query parameter using its name.
Post Saves pending modifications to the current row.
RevertRecord Discards changes to the current record when using cached updates.
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