free barcode generator in vb.net Database Vendor Profiles in Software

Maker Code128 in Software Database Vendor Profiles

Database Vendor Profiles
Recognizing Code 128B In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Make Code 128 Code Set C In None
Using Barcode creation for Software Control to generate, create Code 128C image in Software applications.
Versant Corporation (www.versant.com)
Scanning Code 128B In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
Draw Code 128 Code Set C In C#.NET
Using Barcode maker for .NET Control to generate, create Code 128 image in .NET applications.
Versant was one of the early object database vendors. Its first OODBMS product shipped in September 1990. The current version of its database product offers Java, C++, and SmallTalk interfaces. The object database engine is multisession and multithreaded, and it runs on Windows NT and UNIX platforms. One of its distinguishing characteristics is fault-tolerant capability with automatic failover. Like all of the pure object database vendors, Versant initially presented itself as a next-generation DBMS system, rejecting the relational vendors and their systems as yesterday s technology. More recently, the company has opened its OODBMS to the relational world through the Versant SQL suite, providing SQL access and an ODBC API. The SQL facility, and a corresponding Interactive SQL utility, are available for Versant servers on Solaris, AIX, HP-UX, and Windows platforms. A caching version of the Versant product, named Versant enJin, provides an object-oriented data cache for use in conjunction with J2EE-based application servers. The philosophy of the Versant SQL suite is to automatically present as much of the OODBMS capabilities in a relational model as possible. It automatically maps the Versant database s object schema to a corresponding SQL schema: for example, it transforms two object classes with many-to-many relationships into two base tables and an intersection table to represent relationships. SQL schema information is available through virtual SYSTABLES, SYSCOLUMNS, and SYSINDEXES catalog views. Embedded pointers within the object schema are exploited transparently to enhance query performance. In addition to the programmatic (ODBC) and interactive SQL interfaces, the SQL suite includes data loading and extraction tools to move information between the Versant OODBMS and conventional RDBMS systems.
Generate Code 128 Code Set B In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create Code128 image in ASP.NET applications.
ANSI/AIM Code 128 Drawer In .NET Framework
Using Barcode encoder for VS .NET Control to generate, create Code 128 Code Set B image in Visual Studio .NET applications.
APPENDIXES
USS Code 128 Encoder In Visual Basic .NET
Using Barcode generator for .NET framework Control to generate, create Code 128 Code Set B image in VS .NET applications.
Generating Bar Code In None
Using Barcode drawer for Software Control to generate, create barcode image in Software applications.
This page intentionally left blank.
Creating GTIN - 128 In None
Using Barcode creation for Software Control to generate, create EAN128 image in Software applications.
UPC-A Supplement 2 Creator In None
Using Barcode generation for Software Control to generate, create GS1 - 12 image in Software applications.
Appendix C
Generating Code128 In None
Using Barcode maker for Software Control to generate, create USS Code 128 image in Software applications.
Generating Bar Code In None
Using Barcode encoder for Software Control to generate, create barcode image in Software applications.
SQL Syntax Reference
Drawing EAN - 14 In None
Using Barcode drawer for Software Control to generate, create UPC Shipping Container Symbol ITF-14 image in Software applications.
Read UCC.EAN - 128 In C#.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.
Copyright 2002 by The McGraw-Hill Companies, Inc. Click Here for Terms of Use.
Scan Bar Code In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
UPCA Drawer In Java
Using Barcode creation for Android Control to generate, create UPCA image in Android applications.
SQL: The Complete Reference
Paint EAN13 In Visual Basic .NET
Using Barcode generator for Visual Studio .NET Control to generate, create EAN 13 image in .NET framework applications.
Generate EAN-13 Supplement 5 In None
Using Barcode encoder for Font Control to generate, create EAN13 image in Font applications.
he ANSI/ISO SQL standard specifies the syntax of the SQL language using a formal BNF notation. Unfortunately, the standard is difficult to read and understand for several reasons. First, the standard specifies the language bottom-up rather than top-down, making it difficult to get the "big picture" of a SQL statement. Second, the standard uses unfamiliar terms (such as table-expression and predicate). Finally, the BNF in the standard is many layers deep, providing a very precise specification but masking the relatively simple structure of the SQL language. This appendix presents a complete, simplified BNF for "standard" SQL as it is commonly implemented in the products of most DBMS vendors. Specifically:
Bar Code Maker In Java
Using Barcode generator for Android Control to generate, create barcode image in Android applications.
Draw EAN 13 In Java
Using Barcode creation for Android Control to generate, create EAN13 image in Android applications.
I The language described generally conforms to that required for entry-level conformance to the SQL2 standard, plus those intermediate-level and full-level conformance features that are commonly found in the major DBMS products. I The module language is omitted because it is replaced in virtually all SQL implementations by embedded SQL or a SQL API. I Components of the language are referred to by the common names generally used in DBMS vendor documentation, rather than by the technical names used in the standard. The BNF in this appendix uses the following conventions: I SQL keywords appear in all UPPERCASE MONOSPACE characters. I Syntax elements are specified in italics. I The notation element-list indicates an element or a list of elements separated by commas. I Vertical bars (|) indicate a choice between two or more alternative syntax elements. I Square brackets ([ ]) indicate an optional syntax element enclosed within them. I Braces ({ }) indicate a choice among required syntax elements enclosed within them.
Data Definition Statements
These statements define the structure of a database, including its tables and views and the DBMS-specific "objects" that it contains:
CREATE TABLE table ( table-def-item-list ) DROP TABLE table [ drop-options ]
Appendix C:
SQL Syntax Reference
ALTER TABLE table alter-action CREATE VIEW view [ ( column-list ) ] AS query-spec [ WITH CHECK OPTION ] DROP VIEW view [ drop-options ] CREATE db-object-type db-object-name [ db-object-spec ] DROP db-object-type [ drop-options ] ALTER db-object-type alter-action GRANT { ON { TO { [ WITH ALL PRIVILEGES | privilege-list } table | db-object-type db-object-name } PUBLIC | user-list } GRANT OPTION ] APPENDIXES
REVOKE { ALL PRIVILEGES | privilege-list } ON { table | db-object-type db-object-name } FROM { PUBLIC | user-list } [ WITH GRANT OPTION ]
The keywords used to specify database objects (db-object-type) depend on the specific DBMS. Typical "database objects" with associated privileges include TABLE, VIEW, SCHEMA, PROCEDURE, DOMAIN, INDEX, and the named storage areas maintained by the DBMS. The SQL syntax used to specify these objects is specific to the DBMS that supports them. The specific set of alter-actions that are supported are also DBMS-specific and object type-specific. The language elements used in the CREATE, DROP, ALTER, GRANT, and REVOKE statements are:
Copyright © OnBarcode.com . All rights reserved.