Data.SqlExpr.TSQLExceptionType

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Delphi

TSQLExceptionType = (exceptConnection, exceptCommand, exceptCursor, exceptMetaData, exceptUseLast);

C++

enum DECLSPEC_DENUM TSQLExceptionType : unsigned char { exceptConnection, exceptCommand, exceptCursor, exceptMetaData, exceptUseLast };

Properties

Type	Visibility	Source	Unit	Parent
enum	public	Data.SqlExpr.pas Data.SqlExpr.hpp	Data.SqlExpr	Data.SqlExpr

Description

TSQLExceptionType indicates the type of operation that leads to an ESQLException exception.

ESQLException objects use TSQLExceptionType to identify the dbExpress object from which an error code originated. By identifying the underlying dbExpress object, ESQLException identifies that object's interface, which it then uses to obtain an error message.

TSQLExceptionType includes the following values:

Value	Description
exceptConnection	Error arose when establishing a connection to the database server, obtaining an interface for sending a command, fetching server metadata, or controlling a transaction.
exceptCommand	Error occurred while preparing or executing an SQL command.
exceptCursor	Error occurred while fetching data from a dbExpress cursor.
exceptMetaData	Error occurred while trying to fetch metadata (schema information).
exceptUseLast	The error is cached by the TSQLConnection component.