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Chapter 7: Relational Database Design
Chapter 7: Relational Database Design

...  In fact, dependency A  C in F+ shows R2 is not in BCNF. Database System Concepts ...
Auditing Compliance with a Hippocratic Database
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... disclosure policies might be to support data disclosure auditing by physically logging the results of each query. Problems with this approach include the following: it imposes a substantial overhead on normal query processing, particularly for queries that produce many results, and the actual disclo ...
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...  In fact, dependency A  C in F+ shows R2 is not in BCNF. Database System Concepts ...
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...  Atomicity is actually a property of how the elements of the domain are used.  E.g. strings would normally be considered indivisible  Suppose that students are given roll numbers which are strings of the form CS0012 or EE1127  If the first two characters are extracted to find the department, the ...
Chapter 7: Relational Database Design
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Certification Sample Test 700 IBM DB2 UDB V8.1 Family
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... 12.4.2 Host and application details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 12.4.3 Definition of the Web Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 12.4.4 Generate the configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . 405 12.4.5 D ...
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... A node Q can be locked by Ti in S or IS mode only if the parent of Q is currently locked by Ti in either IX or IS mode. A node Q can be locked by Ti in X, SIX, or IX mode only if the parent of Q is currently locked by Ti in either IX or SIX mode. Ti can lock a node only if it has not previously unlo ...
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Open Database Connectivity

In computing, ODBC (Open Database Connectivity) is a standard programming language middleware API for accessing database management systems (DBMS). The designers of ODBC aimed to make it independent of database systems and operating systems. An application written using ODBC can be ported to other platforms, both on the client and server side, with few changes to the data access code.ODBC accomplishes DBMS independence by using an ODBC driver as a translation layer between the application and the DBMS. The application uses ODBC functions through an ODBC driver manager with which it is linked, and the driver passes the query to the DBMS. An ODBC driver can be thought of as analogous to a printer driver or other driver, providing a standard set of functions for the application to use, and implementing DBMS-specific functionality. An application that can use ODBC is referred to as ""ODBC-compliant"". Any ODBC-compliant application can access any DBMS for which a driver is installed. Drivers exist for all major DBMSs, many other data sources like address book systems and Microsoft Excel, and even for text or CSV files.ODBC was originally developed by Microsoft during the early 1990s, and became the basis for the Call Level Interface (CLI) standardized by SQL Access Group in the Unix and mainframe world. ODBC retained a number of features that were removed as part of the CLI effort. Full ODBC was later ported back to those platforms, and became a de facto standard considerably better known than CLI. The CLI remains similar to ODBC, and applications can be ported from one platform to the other with few changes.
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