The Database Language Sql
Download The Database Language Sql PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Database Language Sql book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
The Database Language SQL
Author: Open University. Relational Databases: Theory and Practice Course Team
language: en
Publisher:
Release Date: 2007-03
This block introduces SQL, the Structured Query Language - the standard language for data management tasks. First, it introduces you to SQL's facilities for retrieving data from a database using increasingly complex queries. Then it looks at how to use SQL to define and populate tables, define constraints on the data and modify the data held in the database. Finally, it looks at some programming structures that can be used to embed SQL in application processes.Please note that although this block is intended to be self contained, you will find many of the concepts easier to understand if you have a good knowledge of the relational theory of Block 2. Also the practical skills that are developed in this block are used in Blocks 4 and 5. This is a very practical block and requires the use of the Interactive SQL interface to the Sybase DBMS that is supplied on the Software CD (order code M359/CDR01) and database cards University data summary and Hospital data summary (order code M359/DBCARDS).
A Guide to the SQL Standard
The previous edition of this book established itself as the most complete and understandable treatment of the SQL standard generally available. Many changes have occurred in the SQL standard world since that edition was published. The original 1992 standard itself has been significantly changed and corrected through the publication of two extensive Technical Corrigenda, one in 1994 and one in 1996. Included in the fourth edition of this important book is information on a major new component, the Call-Level Interface (SQL/CLI), and the Persistent Stored Modules feature (SQL/PSM).
Standard Relational and Network Database Languages
Author: E.J. Yannakoudakis
language: en
Publisher: Springer Science & Business Media
Release Date: 2012-12-06
For any type of software to become standard, whether a third genera tion language or an integrated project support environment (IPSE), it must undergo a series of modifications and updates which are a direct result of theoretical and empirical knowledge gained in the process. The database approach to the design of general purpose infonn ation systems has undergone a series of revisions during the last twenty years which have established it as a winner in many different spheres of infonnation processing, including expert systems and real time control. It is now widely recognised by academics and practitioners alike, that the use of a database management system (DBMS) as the under lying software tool for the development of infonnation/knowledge based systems can lead to environments which are: (a) flexible, (b) efficient, (c) user-friendly, (d) free from duplication, and (e) fully controllable. The concept of a DBMS is now mature and has produced the software necessary to design theactual database holding the data. The database languages proposed recently by the International Organisa tion for Standardisation (ISO) are thorough enough for the design of the necessary software compilers (i.e programs which translate the high level commands into machine language for fast execution by the computer hardware). The ISO languages adopt two basic models of data and therefore two different sets of commands: (a) the relational, implemented via the relational database language (RDL), and (b) the network, imple mented via the network database language (NDL).