By Craig S. Mullins
DB2 Developer's advisor is the field's no 1 go-to resource for on-the-job info on programming and administering DB2 on IBM z/OS mainframes. Now, three-time IBM info Champion Craig S. Mullins has completely up to date this vintage for DB2 v9 and v10. Mullins totally covers new DB2 thoughts together with temporal database aid; hashing; common tablespaces; pureXML; functionality, safety and governance advancements; new info forms, and lots more and plenty extra. utilizing present models of DB2 for z/OS, readers will find out how to: * construct larger databases and functions for CICS, IMS, batch, CAF, and RRSAF * Write expert, code-optimized DB2 SQL * enforce effective dynamic and static SQL functions * Use binding and rebinding to optimize functions * successfully create, administer, and deal with DB2 databases and functions * layout, construct, and populate effective DB2 database constructions for on-line, batch, and information warehousing * enhance the functionality of DB2 subsystems, databases, utilities, courses, and SQL stat DB2 Developer's advisor, 6th Edition builds at the new angle that has made past variations so priceless. It combines: * Condensed, easy-to-read assurance of all crucial themes: info in a different way scattered via dozens of records * distinct discussions of the most important information inside each one subject * specialist, field-tested implementation recommendation * brilliant examples
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Extra resources for DB2 Developer's Guide: A Solutions-Oriented Approach to Learning the Foundation and Capabilities of DB2 for z/OS
Craig is also the author of Database Administration: The Complete Guide to Practices and Procedures (ISBN 0-201-74129-6). This book offers the industry舗s only comprehensive guide to heterogeneous database administration. Craig is a frequent contributor to computer industry publications, with hundreds of articles published over the past couple decades. His articles have been published in Byte, DB2 Update, Database Programming 8 Design, DBMS, Data Management Review, zJournal, and many others. Craig writes four regular columns, including 舠The DBA Corner舡 for Database Trends and Applications, 舠The Database Report舡 for The Data Administration Newsletter, 舠z/Data Perspectives舡 for zJournal, and 舠The Buffer Pool舡 for IDUG Solutions Journal.
Complex SQL statements sometimes cause confusion. Therefore, a basic understanding of the multiple table capabilities of SQL is essential for all users. Joining Tables The capability of DB2 to combine data from multiple tables is called joining. A standard join, also referred to as an inner join, matches the data from two or more tables, based on the values of one or more columns in each table. All matches are combined, creating a resulting row that is the concatenation of the columns from each table where the specified columns match.
If you can remember the set-at-a-time orientation of the relational model, you will begin to grasp the essence and nature of SQL. The capability to act on a set of data coupled with the lack of need for establishing how to retrieve and manipulate data defines SQL as a non-procedural language. A procedural language is based, appropriately enough, on procedures. One procedure is coded to retrieve data record-by-record. Another procedure is coded to calculate percentages based on the retrieved data.