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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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tony |
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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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inherited Destroy; |
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end; |
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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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var Response: TByteArray; |
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begin |
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CheckDatabase; |
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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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tony |
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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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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,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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var Response: TByteArray; |
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begin |
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CheckDatabase; |
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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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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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CheckDatabase; |
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Result := Database.Attachment.GetODSMinorVersion; |
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end; |
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function TIBDatabaseInfo.GetODSMajorVersion: Long; |
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begin |
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tony |
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CheckDatabase; |
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Result := Database.Attachment.GetODSMajorVersion; |
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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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tony |
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function TIBDatabaseInfo.GetOperationCounts(DBInfoCommand: Integer; |
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var FOperation: TStringList): TStringList; |
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tony |
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var opCounts: TDBOperationCounts; |
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i: integer; |
340 |
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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if FOperation = nil then FOperation := TStringList.Create; |
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result := FOperation; |
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tony |
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with Database.Attachment.GetDBInformation([DBInfoCommand]) do |
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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]); |
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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)); |
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tony |
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end; |
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function TIBDatabaseInfo.GetBackoutCount: TStringList; |
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begin |
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result := GetOperationCounts(isc_info_backout_count,FBackoutCount); |
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end; |
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function TIBDatabaseInfo.GetDeleteCount: TStringList; |
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begin |
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result := GetOperationCounts(isc_info_delete_count,FDeleteCount); |
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end; |
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function TIBDatabaseInfo.GetExpungeCount: TStringList; |
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begin |
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result := GetOperationCounts(isc_info_expunge_count,FExpungeCount); |
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end; |
367 |
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function TIBDatabaseInfo.GetInsertCount: TStringList; |
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begin |
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result := GetOperationCounts(isc_info_insert_count,FInsertCount); |
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end; |
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function TIBDatabaseInfo.GetPurgeCount: TStringList; |
374 |
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begin |
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result := GetOperationCounts(isc_info_purge_count,FPurgeCount); |
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end; |
377 |
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function TIBDatabaseInfo.GetReadIdxCount: TStringList; |
379 |
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begin |
380 |
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result := GetOperationCounts(isc_info_read_idx_count,FReadIdxCount); |
381 |
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end; |
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function TIBDatabaseInfo.GetReadSeqCount: TStringList; |
384 |
|
|
begin |
385 |
|
|
result := GetOperationCounts(isc_info_read_seq_count,FReadSeqCount); |
386 |
|
|
end; |
387 |
|
|
|
388 |
|
|
function TIBDatabaseInfo.GetUpdateCount: TStringList; |
389 |
|
|
begin |
390 |
|
|
result := GetOperationCounts(isc_info_update_count,FUpdateCount); |
391 |
|
|
end; |
392 |
|
|
|
393 |
|
|
function TIBDatabaseInfo.GetReadOnly: Long; |
394 |
|
|
begin |
395 |
|
|
result := GetLongDatabaseInfo(isc_info_db_read_only); |
396 |
|
|
end; |
397 |
|
|
|
398 |
|
|
function TIBDatabaseInfo.GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long; |
399 |
|
|
begin |
400 |
tony |
80 |
CheckDatabase; |
401 |
tony |
45 |
with Database.Attachment.GetDBInformation([DatabaseInfoCommand]) do |
402 |
|
|
if (Count > 0) and (Items[0].GetItemType = DatabaseInfoCommand) then |
403 |
|
|
Result := Items[0].AsInteger |
404 |
|
|
else |
405 |
|
|
IBError(ibxeUnexpectedDatabaseInfoResp,[nil]); |
406 |
tony |
33 |
end; |
407 |
|
|
|
408 |
|
|
function TIBDatabaseInfo.GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String; |
409 |
|
|
begin |
410 |
tony |
80 |
CheckDatabase; |
411 |
tony |
45 |
with Database.Attachment.GetDBInformation([DatabaseInfoCommand]) do |
412 |
|
|
if (Count > 0) and (Items[0].GetItemType = DatabaseInfoCommand) then |
413 |
|
|
Result := Items[0].AsString |
414 |
|
|
else |
415 |
|
|
IBError(ibxeUnexpectedDatabaseInfoResp,[nil]); |
416 |
tony |
33 |
end; |
417 |
|
|
|
418 |
|
|
|
419 |
tony |
80 |
function TIBDatabaseInfo.GetDBSQLDialect: Long; |
420 |
tony |
33 |
begin |
421 |
tony |
80 |
CheckDatabase; |
422 |
tony |
45 |
with Database.Attachment.GetDBInformation([isc_info_db_SQL_Dialect]) do |
423 |
|
|
if (Count > 0) and (Items[0].GetItemType = isc_info_db_SQL_Dialect) then |
424 |
|
|
Result := Items[0].AsInteger |
425 |
|
|
else |
426 |
|
|
Result := 1; |
427 |
tony |
33 |
end; |
428 |
|
|
|
429 |
|
|
|
430 |
|
|
end. |