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{************************************************************************}
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{ }
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{ Borland Delphi Visual Component Library }
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{ InterBase Express core components }
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{ }
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{ Copyright (c) 1998-2000 Inprise Corporation }
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{ }
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{ InterBase Express is based in part on the product }
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{ Free IB Components, written by Gregory H. Deatz for }
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{ Hoagland, Longo, Moran, Dunst & Doukas Company. }
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{ Free IB Components is used under license. }
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{ }
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{ The contents of this file are subject to the InterBase }
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{ Public License Version 1.0 (the "License"); you may not }
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{ use this file except in compliance with the License. You }
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{ may obtain a copy of the License at http://www.Inprise.com/IPL.html }
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{ Software distributed under the License is distributed on }
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{ an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either }
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{ express or implied. See the License for the specific language }
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{ governing rights and limitations under the License. }
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{ Portions created by Inprise Corporation are Copyright (C) Inprise }
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{ Corporation. All Rights Reserved. }
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{ Contributor(s): Jeff Overcash }
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{ }
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{ IBX For Lazarus (Firebird Express) }
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{ Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
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{ Portions created by MWA Software are copyright McCallum Whyman }
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{ Associates Ltd 2011 }
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{ }
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{************************************************************************}
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unit IBDatabaseInfo;
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{$Mode Delphi}
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interface
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uses
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tony |
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SysUtils, Classes, IB, IBExternals, IBDatabase;
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tony |
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type
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tony |
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{ TIBDatabaseInfo }
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tony |
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TIBDatabaseInfo = class(TComponent)
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protected
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FDatabase: TIBDatabase;
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FUserNames : TStringList;
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FBackoutCount: TStringList;
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FDeleteCount: TStringList;
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FExpungeCount: TStringList;
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FInsertCount: TStringList;
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FPurgeCount: TStringList;
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FReadIdxCount: TStringList;
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FReadSeqCount: TStringList;
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FUpdateCount: TStringList;
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tony |
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procedure CheckDatabase;
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tony |
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function GetAllocation: Long;
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function GetBaseLevel: Long;
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function GetDBFileName: String;
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function GetDBSiteName: String;
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function GetDBImplementationNo: Long;
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function GetDBImplementationClass: Long;
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function GetNoReserve: Long;
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function GetODSMinorVersion: Long;
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function GetODSMajorVersion: Long;
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function GetPageSize: Long;
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function GetVersion: String;
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function GetCurrentMemory: Long;
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function GetForcedWrites: Long;
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function GetMaxMemory: Long;
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function GetNumBuffers: Long;
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function GetSweepInterval: Long;
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function GetUserNames: TStringList;
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function GetFetches: Long;
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function GetMarks: Long;
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function GetReads: Long;
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function GetWrites: Long;
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function GetBackoutCount: TStringList;
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function GetDeleteCount: TStringList;
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function GetExpungeCount: TStringList;
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function GetInsertCount: TStringList;
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function GetPurgeCount: TStringList;
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function GetReadIdxCount: TStringList;
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function GetReadSeqCount: TStringList;
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function GetUpdateCount: TStringList;
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tony |
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function GetOperationCounts(DBInfoCommand: Integer; var FOperation: TStringList): TStringList;
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tony |
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function GetReadOnly: Long;
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function GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
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function GetDBSQLDialect: Long;
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public
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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function GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
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property Allocation: Long read GetAllocation;
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property BaseLevel: Long read GetBaseLevel;
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property DBFileName: String read GetDBFileName;
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property DBSiteName: String read GetDBSiteName;
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property DBImplementationNo: Long read GetDBImplementationNo;
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property DBImplementationClass: Long read GetDBImplementationClass;
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property NoReserve: Long read GetNoReserve;
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property ODSMinorVersion: Long read GetODSMinorVersion;
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property ODSMajorVersion: Long read GetODSMajorVersion;
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property PageSize: Long read GetPageSize;
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property Version: String read GetVersion;
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property CurrentMemory: Long read GetCurrentMemory;
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property ForcedWrites: Long read GetForcedWrites;
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property MaxMemory: Long read GetMaxMemory;
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property NumBuffers: Long read GetNumBuffers;
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property SweepInterval: Long read GetSweepInterval;
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property UserNames: TStringList read GetUserNames;
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property Fetches: Long read GetFetches;
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property Marks: Long read GetMarks;
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property Reads: Long read GetReads;
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property Writes: Long read GetWrites;
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property BackoutCount: TStringList read GetBackoutCount;
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property DeleteCount: TStringList read GetDeleteCount;
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property ExpungeCount: TStringList read GetExpungeCount;
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property InsertCount: TStringList read GetInsertCount;
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property PurgeCount: TStringList read GetPurgeCount;
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property ReadIdxCount: TStringList read GetReadIdxCount;
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property ReadSeqCount: TStringList read GetReadSeqCount;
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property UpdateCount: TStringList read GetUpdateCount;
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property DBSQLDialect : Long read GetDBSQLDialect;
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property ReadOnly: Long read GetReadOnly;
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published
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property Database: TIBDatabase read FDatabase write FDatabase;
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end;
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implementation
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uses
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tony |
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FBMessages;
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tony |
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{ TIBDatabaseInfo }
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constructor TIBDatabaseInfo.Create(AOwner: TComponent);
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begin
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inherited Create(AOwner);
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FUserNames := TStringList.Create;
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FBackoutCount := nil;
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FDeleteCount := nil;
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FExpungeCount := nil;
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FInsertCount := nil;
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FPurgeCount := nil;
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FReadIdxCount := nil;
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FReadSeqCount := nil;
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FUpdateCount := nil;
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end;
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destructor TIBDatabaseInfo.Destroy;
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begin
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if assigned(FUserNames) then FUserNames.Free;
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if assigned(FBackoutCount) then FBackoutCount.Free;
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if assigned(FDeleteCount) then FDeleteCount.Free;
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if assigned(FExpungeCount) then FExpungeCount.Free;
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if assigned(FInsertCount) then FInsertCount.Free;
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if assigned(FPurgeCount) then FPurgeCount.Free;
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if assigned(FReadIdxCount) then FReadIdxCount.Free;
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if assigned(FReadSeqCount) then FReadSeqCount.Free;
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if assigned(FUpdateCount) then FUpdateCount.Free;
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tony |
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inherited Destroy;
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end;
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tony |
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procedure TIBDatabaseInfo.CheckDatabase;
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begin
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if Database = nil then
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IBError(ibxeDatabaseNotAssigned,[]);
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if Database.Attachment = nil then
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IBError(ibxeDatabaseClosed,[]);
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end;
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tony |
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function TIBDatabaseInfo.GetAllocation: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_allocation);
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end;
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function TIBDatabaseInfo.GetBaseLevel: Long;
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tony |
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var Response: TByteArray;
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tony |
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begin
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tony |
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_base_level]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_base_level) then
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begin
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Response := Items[0].GetAsBytes;
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Result := Response[1];
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end
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetDBFileName: String;
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var
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ConnectionType: integer;
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SiteName: string;
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begin
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_db_id]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_db_id) then
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Items[0].DecodeIDCluster(ConnectionType,Result,SiteName)
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetDBSiteName: String;
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var
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ConnectionType: integer;
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FileName: string;
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tony |
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begin
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tony |
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_db_id]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_db_id) then
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Items[0].DecodeIDCluster(ConnectionType,FileName,Result)
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetDBImplementationNo: Long;
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tony |
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var Response: TByteArray;
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tony |
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begin
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tony |
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_implementation]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_implementation) then
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begin
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Response := Items[0].GetAsBytes;
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Result := Response[1];
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end
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetDBImplementationClass: Long;
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tony |
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var Response: TByteArray;
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tony |
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begin
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tony |
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_implementation]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_implementation) then
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begin
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Response := Items[0].GetAsBytes;
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Result := Response[2];
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end
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetNoReserve: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_no_reserve);
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end;
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function TIBDatabaseInfo.GetODSMinorVersion: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_ods_minor_version);
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end;
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function TIBDatabaseInfo.GetODSMajorVersion: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_ods_version);
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end;
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function TIBDatabaseInfo.GetPageSize: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_page_size);
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end;
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function TIBDatabaseInfo.GetVersion: String;
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tony |
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var Version: byte;
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tony |
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begin
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tony |
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CheckDatabase;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_version]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_version) then
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Items[0].DecodeVersionString(Version,Result)
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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end;
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function TIBDatabaseInfo.GetCurrentMemory: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_current_memory);
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end;
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function TIBDatabaseInfo.GetForcedWrites: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_forced_writes);
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end;
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function TIBDatabaseInfo.GetMaxMemory: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_max_memory);
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end;
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function TIBDatabaseInfo.GetNumBuffers: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_num_buffers);
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end;
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function TIBDatabaseInfo.GetSweepInterval: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_sweep_interval);
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end;
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function TIBDatabaseInfo.GetUserNames: TStringList;
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begin
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tony |
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CheckDatabase;
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tony |
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Result := FUserNames;
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tony |
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FUserNames.Clear;
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tony |
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with Database.Attachment.GetDBInformation([isc_info_user_names]) do
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if (Count > 0) and (Items[0].GetItemType = isc_info_user_names) then
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Items[0].DecodeUserNames(Result)
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else
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
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tony |
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end;
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function TIBDatabaseInfo.GetFetches: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_fetches);
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end;
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function TIBDatabaseInfo.GetMarks: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_marks);
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end;
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function TIBDatabaseInfo.GetReads: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_reads);
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end;
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function TIBDatabaseInfo.GetWrites: Long;
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begin
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result := GetLongDatabaseInfo(isc_info_writes);
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end;
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334 |
tony |
83 |
function TIBDatabaseInfo.GetOperationCounts(DBInfoCommand: Integer;
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var FOperation: TStringList): TStringList;
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336 |
tony |
45 |
var opCounts: TDBOperationCounts;
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337 |
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i: integer;
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tony |
33 |
begin
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339 |
tony |
80 |
CheckDatabase;
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tony |
33 |
if FOperation = nil then FOperation := TStringList.Create;
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result := FOperation;
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tony |
45 |
with Database.Attachment.GetDBInformation([DBInfoCommand]) do
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343 |
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if (Count > 0) and (Items[0].GetItemType = DBInfoCommand) then
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opCounts := Items[0].getOperationCounts
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else
|
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IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
|
347 |
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for i := 0 to Length(opCounts) - 1 do
|
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FOperation.Add(IntToStr(opCounts[i].TableID) +'='+IntToStr(opCounts[i].Count));
|
349 |
tony |
33 |
end;
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351 |
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function TIBDatabaseInfo.GetBackoutCount: TStringList;
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352 |
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begin
|
353 |
|
|
result := GetOperationCounts(isc_info_backout_count,FBackoutCount);
|
354 |
|
|
end;
|
355 |
|
|
|
356 |
|
|
function TIBDatabaseInfo.GetDeleteCount: TStringList;
|
357 |
|
|
begin
|
358 |
|
|
result := GetOperationCounts(isc_info_delete_count,FDeleteCount);
|
359 |
|
|
end;
|
360 |
|
|
|
361 |
|
|
function TIBDatabaseInfo.GetExpungeCount: TStringList;
|
362 |
|
|
begin
|
363 |
|
|
result := GetOperationCounts(isc_info_expunge_count,FExpungeCount);
|
364 |
|
|
end;
|
365 |
|
|
|
366 |
|
|
function TIBDatabaseInfo.GetInsertCount: TStringList;
|
367 |
|
|
begin
|
368 |
|
|
result := GetOperationCounts(isc_info_insert_count,FInsertCount);
|
369 |
|
|
end;
|
370 |
|
|
|
371 |
|
|
function TIBDatabaseInfo.GetPurgeCount: TStringList;
|
372 |
|
|
begin
|
373 |
|
|
result := GetOperationCounts(isc_info_purge_count,FPurgeCount);
|
374 |
|
|
end;
|
375 |
|
|
|
376 |
|
|
function TIBDatabaseInfo.GetReadIdxCount: TStringList;
|
377 |
|
|
begin
|
378 |
|
|
result := GetOperationCounts(isc_info_read_idx_count,FReadIdxCount);
|
379 |
|
|
end;
|
380 |
|
|
|
381 |
|
|
function TIBDatabaseInfo.GetReadSeqCount: TStringList;
|
382 |
|
|
begin
|
383 |
|
|
result := GetOperationCounts(isc_info_read_seq_count,FReadSeqCount);
|
384 |
|
|
end;
|
385 |
|
|
|
386 |
|
|
function TIBDatabaseInfo.GetUpdateCount: TStringList;
|
387 |
|
|
begin
|
388 |
|
|
result := GetOperationCounts(isc_info_update_count,FUpdateCount);
|
389 |
|
|
end;
|
390 |
|
|
|
391 |
|
|
function TIBDatabaseInfo.GetReadOnly: Long;
|
392 |
|
|
begin
|
393 |
|
|
result := GetLongDatabaseInfo(isc_info_db_read_only);
|
394 |
|
|
end;
|
395 |
|
|
|
396 |
|
|
function TIBDatabaseInfo.GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
|
397 |
|
|
begin
|
398 |
tony |
80 |
CheckDatabase;
|
399 |
tony |
45 |
with Database.Attachment.GetDBInformation([DatabaseInfoCommand]) do
|
400 |
|
|
if (Count > 0) and (Items[0].GetItemType = DatabaseInfoCommand) then
|
401 |
|
|
Result := Items[0].AsInteger
|
402 |
|
|
else
|
403 |
|
|
IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
|
404 |
tony |
33 |
end;
|
405 |
|
|
|
406 |
|
|
function TIBDatabaseInfo.GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
|
407 |
|
|
begin
|
408 |
tony |
80 |
CheckDatabase;
|
409 |
tony |
45 |
with Database.Attachment.GetDBInformation([DatabaseInfoCommand]) do
|
410 |
|
|
if (Count > 0) and (Items[0].GetItemType = DatabaseInfoCommand) then
|
411 |
|
|
Result := Items[0].AsString
|
412 |
|
|
else
|
413 |
|
|
IBError(ibxeUnexpectedDatabaseInfoResp,[nil]);
|
414 |
tony |
33 |
end;
|
415 |
|
|
|
416 |
|
|
|
417 |
tony |
80 |
function TIBDatabaseInfo.GetDBSQLDialect: Long;
|
418 |
tony |
33 |
begin
|
419 |
tony |
80 |
CheckDatabase;
|
420 |
tony |
45 |
with Database.Attachment.GetDBInformation([isc_info_db_SQL_Dialect]) do
|
421 |
|
|
if (Count > 0) and (Items[0].GetItemType = isc_info_db_SQL_Dialect) then
|
422 |
|
|
Result := Items[0].AsInteger
|
423 |
|
|
else
|
424 |
|
|
Result := 1;
|
425 |
tony |
33 |
end;
|
426 |
|
|
|
427 |
|
|
|
428 |
|
|
end.
|