built in packages for distributed systems

... Sun Microsystems, http://java.sun.com/beans/ [24] H Kopetz Sparse Time versus Dense Time in Distributed Real-Time Systems In Proceedings of the 12th Intl Conf on Distributed Computing Systems ... [48], we suggest to think of composite events having a start and endpoint thus associating an interval with the composite event instead of using the timestamp of the terminating event Then we can ... like NTP for provision of a global reference time and introduce the concept of accuracy intervals We define abstract interfaces for local as well as global clock readings used for timestamping events...

Ngày tải lên: 07/03/2014, 17:20

... approaches for mastering these verification problems, beginning with the main concepts and formal methods used for modeling and well structuring distributed systems and for expressing their logical ... checking algorithms, provide time modeling and verification for industrial systems Real-time systems involve time represented by clocks that are continuous variables forcing us to deal with in nity ... ETRUCCI 41 www.it-ebooks.info 42 Models and Analysis in Distributed Systems for Distributed Systems 3.2 Criteria for developing specifications It is necessary, before starting the development of...

Ngày tải lên: 24/04/2014, 15:35

... reserved 1.2.3 Distributed Database Packages 13 Chapter Introduction 1.3 Using Built in Packages There are several steps involved in using a built in package: Install the built in package into the ... an underlying built in package (or, in some cases, a subset of the package) Table 1.3 shows the encapsulation packages in the book Table 1.3: Encapsulation Packages for Built ins Built in Package/ ... A.1 Installing the Guide In a Microsoft Windows environment, you begin installation by double−clicking on the setup.exe file to run the installation program If you are working in a non−Windows...

Ngày tải lên: 24/04/2014, 15:42

... [3] V Vyatkin, “Intelligent mechatronic components: control system engineering using an open distributed architecture,” in Proceedings of IEEE Conference on Emerging Technologies in Factory Automation ... StationNr Out Real Hour Power Out INT Year Year Out Real Minute INT Month Date Out Real Input INT Day Time Out Real TransformerConst INT Hour Power Out Real INT Minute Flag Bool FB PZN Archive TransmitterConst ... can be linked with all data inputs, which leads to a sampling of all data inputs by the occurrence of an event at the event input However, the linked set of data inputs should be cut to a minimum,...

Ngày tải lên: 22/06/2014, 19:20

... Controlling Access with Packages 15 1.3.3 Referencing Built in Package Elements .17 1.3.4 Exception Handling and Built in Packages 18 1.3.5 Encapsulating Access to the Built in ... Access to the Built in Packages 24 1.3.6 Calling Built in Packaged Code from Oracle Developer/2000 Release 27 1.3.7 Accessing Built in Packaged Technology from Within SQL .30 ... 85 2.4.3 Combining Operations 87 2.4.4 Minimizing Memory for Cursors .88 2.4.5 Improving the Performance of Dynamic SQL 89 2.4.6 Problem−Solving Dynamic SQL Errors...

Ngày tải lên: 07/07/2014, 00:20

... .724 16.3.2 Creating, Maintaining, and Dropping Priority Groups 725 16.3.3 Creating and Maintaining Priorities Within a Priority Group 729 16.3.4 Dropping Priorities from a Priority ... DBMS_SHARED_POOL: Pinning Objects 563 12.2.1 Getting Started with DBMS_SHARED_POOL 563 12.2.2 Pinning and Unpinning Objects 564 12.2.3 Monitoring and Modifying Shared Pool ... Managing Session Information 518 11.1 DBMS_SESSION: Managing Session Information 518 11.1.1 Getting Started with DBMS_SESSION 518 11.1.2 Modifying Session Settings...

Ngày tải lên: 07/07/2014, 00:20

... A.1 Installing the Guide In a Microsoft Windows environment, you begin installation by double−clicking on the setup.exe file to run the installation program If you are working in a non−Windows ... Source Code Index by Chapter A.1 Installing the Guide Copyright (c) 2000 O'Reilly & Associates All rights reserved Chapter Introduction Contents: The Power of Built in Packages Built in Packages ... The Power of Built in Packages Built in Packages Covered in This Book Using Built in Packages Examining Built in Package Source Code Ah, for the good old days of Version 1.0 of PL /SQL! Life was...

Ngày tải lên: 07/07/2014, 00:20

... of those packages Oracle Developer/2000 contains a set of built in packages, including DDE and TEXT_IO Oracle WebServer offers its own built in packages, from HTP to OWA_UTIL, for use in web−based ... Chapter Introduction 1.2 Built in Packages Covered in This Book Oracle Corporation provides many built in packages, in a variety of its products You may find it hard to believe, ... discuss those packages Instead, its focus is on the core database built in packages, generally those with a DBMS_ or UTL_ prefix Within that context, this book discusses all of the built in packages...

Ngày tải lên: 07/07/2014, 00:20

... reserved 1.2.3 Distributed Database Packages 13 Chapter Introduction 1.3 Using Built in Packages There are several steps involved in using a built in package: Install the built in package into the ... schedule propagation, and manage transactions 1.1 The Power of Built in Packages 1.2.3 Distributed Database Packages 1.3 Using Built in Packages 12 [Appendix A] What's on the Companion Disk? Copyright ... functionality to maintain snapshots, snapshot groups, and snapshot logs This includes refreshing snapshots, changing refresh intervals, adding and removing snapshots from snapshot groups, and purging uneccessary...

Ngày tải lên: 07/07/2014, 00:20

... procedure) The third instance is a constant, passed as the third argument in my call to DBMS_SQL.PARSE 1.3.4 Exception Handling and Built in Packages Programs in built in packages can raise exceptions ... when working with built in packages I will then show you the kind of code you will need to write to handle exceptions properly when they propagate out from built in packages The following sections ... constant integer := 1; v7 constant integer := 2; −− −− PROCEDURES AND FUNCTIONS −− FUNCTION open_cursor RETURN INTEGER; PROCEDURE parse (c IN INTEGER, statement IN VARCHAR2, language_flag IN INTEGER);...

Ngày tải lên: 07/07/2014, 00:20

... an underlying built in package (or, in some cases, a subset of the package) Table 1.3 shows the encapsulation packages in the book Table 1.3: Encapsulation Packages for Built ins Built in Package/ ... speaking, there are two types of encapsulation to consider when working with the built in packages: Extension encapsulation This is the most common type of encapsulation for built in packages In ... of the following reasons will do: • 1.3.5 Encapsulating Access to the Built in Packages 24 [Appendix A] What's on the Companion Disk? The built in packages offer lots of interesting technology,...

Ngày tải lên: 07/07/2014, 00:20

... like built in packages unless you are connected The following sections explore these restrictions in more detail and suggest work−arounds for making full use of the built in packages from within ... earlier section in this chapter ("Exception Handling and Built in Packages" ) explored the different types of exceptions that can be raised from within built in packages One type in particular, ... DBMS_SQL or another built in package Why not collect them all together in a single encapsulator package? This point is driven home in the next section 1.3.6.2 Handling exceptions in Oracle Developer/2000...

Ngày tải lên: 07/07/2014, 00:20

... except for the addition of the procedure call) will not be executable within SQL: CREATE OR REPLACE FUNCTION totcomp (sal _in IN NUMBER, comm _in IN NUMBER) RETURN NUMBER IS myjob INTEGER; BEGIN DBMS_JOB.SUBMIT ... X X INSTR X X X X SUBSTR DBMS_OUTPUT X a X X X X b DISABLE X X b X X X X GET_LINES X X b X X X X ENABLE b GET_LINE b NEW_LINE b PUT 1.3.7 Accessing Built in Packaged Technology from Within SQL ... structures by calling an INSERT, UPDATE, or DELETE WNPS Writes No Package State In other words, does not change the values of any package data structures RNDS 1.3.7 Accessing Built in Packaged Technology...

Ngày tải lên: 07/07/2014, 00:20

... JENNIFER 1.2 Built in Packages Covered in This Book 1.4 Examining Built in Package Source Code Copyright (c) 2000 O'Reilly & Associates All rights reserved 1.3.7 Accessing Built in Packaged Technology ... Technology from Within SQL 37 Chapter Introduction 1.4 Examining Built in Package Source Code When you install the Oracle database, the source code files for all of the built in packages are placed ... which built in packages and/or other objects must already be in the database before you can proceed with the installation Where you find all of this interesting code? If you are working in a UNIX...

Ngày tải lên: 07/07/2014, 00:20

... is truly dynamic or involves DDL PROCEDURE giveraise (dept _in IN INTEGER, raise _in IN NUMBER) IS cursor_handle INTEGER; emps_updated INTEGER; BEGIN /* Create a cursor to use for the dynamic SQL ... PROCEDURE create_index (index _in IN VARCHAR2, table _in IN VARCHAR2, column _in in VARCHAR2) IS cursor_handle INTEGER; feedback INTEGER; BEGIN /* Create a cursor to use for the dynamic SQL */ cursor_handle ... employee in the specified department a raise: PROCEDURE BEGIN UPDATE SET WHERE END; giveraise (dept _in IN INTEGER, raise _in IN NUMBER) IS employee salary = salary + raise _in department_id = dept _in; ...

Ngày tải lên: 07/07/2014, 00:20

... INDEX BY BINARY_INTEGER; VARCHAR2_TABLE IS TABLE OF VARCHAR2(2000) INDEX BY BINARY_INTEGER; DATE_TABLE IS TABLE OF DATE INDEX BY BINARY_INTEGER; BLOB_TABLE IS TABLE OF BLOB INDEX BY BINARY_INTEGER; ... have included a placeholder in your SQL statement string in the form :BINDVAR, but you did not call BIND_VARIABLE to bind a value to that placeholder ORA−01027 Bind variables not allowed for data ... OF CLOB INDEX BY BINARY_INTEGER; BFILE_TABLE IS TABLE OF BFILE INDEX BY BINARY_INTEGER; Remember that these index−by tables are also available for your use even when you are not using, for example,...

Ngày tải lên: 07/07/2014, 00:20

... (tab _in IN VARCHAR2, col _in IN VARCHAR2, val _in IN NUMBER) 2.3.2 Opening the Cursor 54 [Appendix A] What's on the Companion Disk? IS cur BINARY_INTEGER := DBMS_SQL.OPEN_CURSOR; fdbk BINARY_INTEGER; ... 2.3.2 Opening the Cursor Before you perform any kind of dynamic SQL, you must obtain a pointer to memory in which the dynamic SQL will be managed You this by "opening the cursor," at which point Oracle ... DBMS_SQL.PARSE (c IN INTEGER, statement IN VARCHAR2, language_flag IN INTEGER); The parameters for this procedure are summarized in the following table Parameter Description c The pointer to the cursor...

Ngày tải lên: 07/07/2014, 00:20

... OUT BINARY_INTEGER, len _in IN BINARY_INTEGER) RETURN VARCHAR2 IS v_start BINARY_INTEGER := start_inout; BEGIN start_inout := LEAST (len _in + 1, start_inout + maxlen); RETURN SUBSTR (string _in, ... string to index−by table */ PROCEDURE fill_sql_table (string _in IN VARCHAR2) IS v_length BINARY_INTEGER; v_start BINARY_INTEGER := 1; BEGIN IF string _in IS NOT NULL THEN v_length := LENGTH (string _in) ; ... DBMS_SQL.BIND_VARIABLE_CHAR (c IN INTEGER, name IN VARCHAR2, value IN CHAR CHARACTER SET ANY_CS, [,out_value_size IN INTEGER]); PROCEDURE DBMS_SQL.BIND_VARIABLE_RAW (c IN INTEGER, name IN VARCHAR2,...

Ngày tải lên: 07/07/2014, 00:20

... DBMS_SQL.DEFINE_COLUMN (c IN INTEGER ,position IN INTEGER ,column IN VARCHAR2 CHARACTER SET ANY_CS ,column_size IN INTEGER); PROCEDURE DBMS_SQL.DEFINE_COLUMN_CHAR (c IN INTEGER ,position IN INTEGER ... IN CHAR CHARACTER SET ANY_CS ,column_size IN INTEGER); PROCEDURE DBMS_SQL.DEFINE_COLUMN_RAW (c IN INTEGER ,position IN INTEGER ,column IN RAW ,column_size IN INTEGER); PROCEDURE DBMS_SQL.DEFINE_COLUMN_ROWID ... to the DEFINE_ARRAY procedure: PROCEDURE DBMS_SQL.DEFINE_ARRAY (c IN INTEGER ,position IN INTEGER , IN ,cnt IN INTEGER ,lower_bound IN INTEGER); The DEFINE_ARRAY...

Ngày tải lên: 07/07/2014, 00:20

... the specification for the function FUNCTION DBMS_SQL.EXECUTE_AND_FETCH (c IN INTEGER ,exact IN BOOLEAN DEFAULT FALSE) RETURN INTEGER; Parameters are summarized in the following table Parameter ... for writing about PL/SQL technology: the Oracle documentation and the Oracle software The former is helpful for guiding my "first draft." The latter is helpful for making sure that my "final draft" ... DBMS_SQL.COLUMN_VALUE (c IN INTEGER, position IN INTEGER, value OUT , [, column_error OUT NUMBER] [, actual_length OUT INTEGER ]); The COLUMN_VALUE parameters are summarized in the following table...

Ngày tải lên: 07/07/2014, 00:20