Functions database

Most databases, e.g. the World Patents Index, provide a "Learn database" function (LWPl) to give the opportunity for training in the specific retrieval strategies for patents. 

To use the database functions of Orcad Capture you need the five components listed below. Most users will only need to follow step 5, which shows how to install and set up the data base. Make sure that you follow these instructions completely. 

Functions (eg., statistical, financial, data regression, matrix operations, and database functions)... 

Spreadsheet applications need to be protected from inadvertent or unauthorized changes. Applications without database functionality should be preserved in a write-protected directory, where only a very limited number of people have access and aU changes are documented. 

Applications with database functionality are to be classified as complex applications. All applications for the generation of electronic records need to have the audit trail switched on. 

In this light it is imperative that the archival strategy and validation effort for a database consider metadata. If metadata is incompletely copied, records restored from archive will not be properly retrievable and/or reported. Ergo, it is imperative that the database functionality be challenged again with restored records after it has been fonnd acceptable with normal data. 

Excel Tip. The name Database is one of Excel s built-in names. Excel recognizes the name Database as the reference to use in database functions. Other built-in names include Criteria, Extract, Print Area, Print Titles. Don t use any of these names as variable names except within the context of their normal use. 

There are 12 database functions that return information about the records in a database DAVERAGE, DCOUNT, DCOUNTA, DGET, DMAX, DMIN, DPRODUCT, DSTDEV, DSTDEVP, DSUM, DVAR and DVARP. Some of these are particularly useful and are described here. See Microsoft Excel Worksheet Function R erence or Excel s On-Line Help for further information. 

All 12 database functions have the syntax (database, field, criteria). Database is either the reference to the database or the name assigned to it. Field is either the name of the field, as text, or a number indicating the position of the field within the database. Criteria is either the reference to the criteria range or the name assigned to it. 

Description Statistical and database functions with molecular and substituent property calculations. Within TSAR 3D package. 

Information technology/ IDS Integrate and manage database functions. Pharmacy degree... 

Relational databases are not just for storage and organization of information. While they have always provided useful tools to search data, I now realize how the extensibility of a database increases its usefulness by using various procedural languages operating within the database. I have converted most of my essential tools into database functions. Whenever possible, these tools operate on whole tables rather than processing them using arrays and iterators. It seems now that I am inside the database... 

EXAMPLE. To obtain the average refractive index of all samples in the database that have molecular weight greater than 12 and melting point greater than 215, enter the database function DAVE RAG E( Database, 5, Criteria). The formula returns the value 1.49948135, the average for the three samples that were extracted in the example shown in Figure 6-15. 

Figure 8.21 LIMS and laboratory management illustrating the main database functions and the...

Separating the appUcation and database functionality leads to better load balancing... 

Database functions for chemicals, reference materials, suppliers, specifications, personal, and bibliographies. 

MACCS-II commands are grouped into facihties, each of which represents a chemical-scientific database function. These functions interact to perform the data retrieval, transfer, and reporting activities that are central to the system. Scientific programmers utihse the facihties to create command- and menu-driven apphcations for use by end-user scientists. The facihties are summarised as follows ... 

Schuldt, H., Scheck, H.J., Tresch, M. (1998). Coordination in CIM Bringing database functionality to application systems. In Proceedings of the 5 European Concurrent Engineering Conference (ECEC 98), Erlangen, Germany. 

Verify Database Functionality. This is to ensure that the database is functional and accessible by cUent PCs—for example, by launching the software from a client PC and testing basic... 

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