MyDAC

TCustomDADataSet Properties

Properties of the TCustomDADataSet class.

For a complete list of the TCustomDADataSet class members, see the TCustomDADataSet Members topic.

Public

Name Description

BaseSQL

Used to return SQL text without any changes performed by AddWhere, SetOrderBy, and FilterSQL.

CachedUpdates (inherited from TMemDataSet)

Used to enable or disable the use of cached updates for a dataset.

Conditions

Used to add WHERE conditions to a query

Connection

Used to specify a connection object to use to connect to a data store.

DataTypeMap

Used to set data type mapping rules

Debug

Used to display executing statement, all its parameters' values, and the type of parameters.

DetailFields

Used to specify the fields that correspond to the foreign key fields from MasterFields when building master/detail relationship.

Disconnected

Used to keep dataset opened after connection is closed.

FetchRows

Used to define the number of rows to be transferred across the network at the same time.

FilterSQL

Used to change the WHERE clause of SELECT statement and reopen a query.

FinalSQL

Used to return SQL text with all changes performed by AddWhere, SetOrderBy, and FilterSQL, and with expanded macros.

IndexFieldNames (inherited from TMemDataSet)

Used to get or set the list of fields on which the recordset is sorted.

IsQuery

Used to check whether SQL statement returns rows.

KeyExclusive (inherited from TMemDataSet)

Specifies the upper and lower boundaries for a range.

KeyFields

Used to build SQL statements for the SQLDelete, SQLInsert, and SQLUpdate properties if they were empty before updating the database.

LocalConstraints (inherited from TMemDataSet)

Used to avoid setting the Required property of a TField component for NOT NULL fields at the time of opening TMemDataSet.

LocalUpdate (inherited from TMemDataSet)

Used to prevent implicit update of rows on database server.

MacroCount

Used to get the number of macros associated with the Macros property.

Macros

Makes it possible to change SQL queries easily.

MasterFields

Used to specify the names of one or more fields that are used as foreign keys for dataset when establishing detail/master relationship between it and the dataset specified in MasterSource.

MasterSource

Used to specify the data source component which binds current dataset to the master one.

Options

Used to specify the behaviour of TCustomDADataSet object.

ParamCheck

Used to specify whether parameters for the Params property are generated automatically after the SQL property was changed.

ParamCount

Used to indicate how many parameters are there in the Params property.

Params

Used to view and set parameter names, values, and data types dynamically.

Prepared (inherited from TMemDataSet)

Determines whether a query is prepared for execution or not.

Ranged (inherited from TMemDataSet)

Indicates whether a range is applied to a dataset.

ReadOnly

Used to prevent users from updating, inserting, or deleting data in the dataset.

RefreshOptions

Used to indicate when the editing record is refreshed.

RowsAffected

Used to indicate the number of rows which were inserted, updated, or deleted during the last query operation.

SQL

Used to provide a SQL statement that a query component executes when its Open method is called.

SQLDelete

Used to specify a SQL statement that will be used when applying a deletion to a record.

SQLInsert

Used to specify the SQL statement that will be used when applying an insertion to a dataset.

SQLLock

Used to specify a SQL statement that will be used to perform a record lock.

SQLRecCount

Used to specify the SQL statement that is used to get the record count when opening a dataset.

SQLRefresh

Used to specify a SQL statement that will be used to refresh current record by calling the TCustomDADataSet.RefreshRecord procedure.

SQLUpdate

Used to specify a SQL statement that will be used when applying an update to a dataset.

UniDirectional

Used if an application does not need bidirectional access to records in the result set.

UpdateRecordTypes (inherited from TMemDataSet)

Used to indicate the update status for the current record when cached updates are enabled.

UpdatesPending (inherited from TMemDataSet)

Used to check the status of the cached updates buffer.

See Also

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