Datasnap.DBClient

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Defines classes that implement database-independent datasets, connection brokers, remote servers for multi-tiered database applications, aggregate fields, and related functionality.

Package	dsnap250.bpl

Classes

EDBClient	EDBClient is the exception class for client dataset errors.
EReconcileError	EReconcileError is the exception class for client dataset update errors.
TAggregate	TAggregate represents a maintained aggregate in a client dataset.
TAggregates	TAggregates is a collection of TAggregate objects.
TClientBlobStream	TClientBlobStream lets applications read from or write to BLOB fields in a client dataset.
TClientDataSet	TClientDataSet implements a database-independent dataset.
TConnectionBroker	TConnectionBroker centralizes the connection to an application server for a set of client datasets that all use the same connection.
TCustomClientDataSet	TCustomClientDataSet is the base class for datasets that cache their data in memory.
TCustomRemoteServer	TCustomRemoteServer is the base class for all components that connect to an application server in a multi-tiered database application.

Routines

PackageParams	Converts a TParams object into an OleVariant that can be used in multi-tiered applications.
UnpackParams	Converts an OleVariant that represents a set of parameters into a TParams object.

Types

PKeyBuffer	Is a pointer to a TKeyBuffer record.
PRecInfo	Is a pointer to a TRecInfo record.
TAggUpdateEvent	TAggUpdateEvent is the type for the OnUpdate event handler of TAggregate.
TCDSKeyBuffer	Datasnap.DBClient.TCDSKeyBuffer is an alias for Datasnap.DBClient.TKeyBuffer.
TCDSRecInfo	Datasnap.DBClient.TCDSRecInfo is an alias for Datasnap.DBClient.TRecInfo.
TDataPacketFormat	TDataPacketFormat indicates how information is encoded in a data packet or delta packet.
TDataSetOption	Represents an enumeration of dataset options.
TDataSetOptions	Is a set of TDataSetOption enumeration items.
TFetchOption	TFetchOption and TFetchOptions indicate the type of information about a record that a client dataset can request.
TFetchOptions	Is a set of TFetchOption enumeration items.
TFieldDescList	Represents a dynamic array whose elements are field descriptors (DSFLDDesc records).
TGetUsernameEvent	TGetUsernameEvent is the type for event handlers that supply the user name with which to initialize a remote login dialog.
TKeyBuffer	Represents a record that contains various information (such as modified state, field count or data) about the search key buffer.
TRecInfo	Represents a record that contains various information (such as record number, bookmark flag or attribute) about a database record.
TReconcileAction	TReconcileAction indicates how a client dataset should handle a record whose update generated an error.
TReconcileErrorEvent	TReconcileErrorEvent is the type for event handlers that handle update errors for a client dataset.
TReconcileInfo	Represents a record that contains various information (such as dataset, updating kind or reference to a reconcile error exception) about a reconcile operation.
TRemoteEvent	TRemoteEvent is the type for event handlers that pass custom information to or from a provider.

Constants

AllParamTypes	AllParamTypes: Set = [ptUnknown..ptResult];
AllRecords	AllRecords: Integer = $FFFFFFFF;