UniDAC

TCustomUniDataSet Properties

Properties of the TCustomUniDataSet class.

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

Public

Name Description

BaseSQL (inherited from TCustomDADataSet)

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 (inherited from TCustomDADataSet)

Used to add WHERE conditions to a query

Connection (inherited from TCustomDADataSet)

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

DataTypeMap (inherited from TCustomDADataSet)

Used to set data type mapping rules

Debug (inherited from TCustomDADataSet)

Used to display the statement that is being executed and the values and types of its parameters.

DetailFields (inherited from TCustomDADataSet)

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

Disconnected (inherited from TCustomDADataSet)

Used to keep dataset opened after connection is closed.

DMLRefresh

Used to refresh record by RETURNING clause when insert or update is performed.

FetchRows (inherited from TCustomDADataSet)

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

FilterSQL (inherited from TCustomDADataSet)

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

FinalSQL (inherited from TCustomDADataSet)

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 (inherited from TCustomDADataSet)

Used to check whether SQL statement returns rows.

KeyExclusive (inherited from TMemDataSet)

Specifies the upper and lower boundaries for a range.

KeyFields (inherited from TCustomDADataSet)

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

LastInsertId

Can be used with MySQL and PostgreSQL servers to get the value of the ID field after executing INSERT statement.

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 (inherited from TCustomDADataSet)

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

Macros (inherited from TCustomDADataSet)

Makes it possible to change SQL queries easily.

MasterFields (inherited from TCustomDADataSet)

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 (inherited from TCustomDADataSet)

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

Options

Specifies the behaviour of a TCustomUniDataSet object.

ParamCheck (inherited from TCustomDADataSet)

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

ParamCount (inherited from TCustomDADataSet)

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

Params

Holds the parameters for a query's SQL statement.

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 (inherited from TCustomDADataSet)

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

RefreshOptions (inherited from TCustomDADataSet)

Used to indicate when the editing record is refreshed.

RowsAffected (inherited from TCustomDADataSet)

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

SpecificOptions

Used to provide extended settings for each data provider.

SQL (inherited from TCustomDADataSet)

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

SQLDelete (inherited from TCustomDADataSet)

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

SQLInsert (inherited from TCustomDADataSet)

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

SQLLock (inherited from TCustomDADataSet)

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

SQLRecCount (inherited from TCustomDADataSet)

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

SQLRefresh (inherited from TCustomDADataSet)

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

SQLUpdate (inherited from TCustomDADataSet)

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

Transaction

Used to specify the TUniTransaction object in the context of which SQL commands will be executed, and queries retrieving data will be opened.

UniDirectional (inherited from TCustomDADataSet)

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

UpdateObject

Points to an update object component which provides update SQL statements or update objects for flexible data update.

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.

UpdateTransaction

Used to specify the TUniTransaction object in the context of which update commands will be executed.

See Also

© 1997-2020 Devart. All Rights Reserved. Request Support DAC Forum Provide Feedback