By Cary Jensen
This technically reviewed and ADS-endorsed source promises to-the-point info on utilizing advertisements to construct extraordinary databases with remarkable balance, scalability, and function. learn how to install Advantage-enabled purposes as stand-alone, peer-to-peer, client/server, and net functions with only one set of resource code. Plus-CD-ROM incorporates a trial model of advertisements, in addition to all the present database connectivity drivers, database administration instruments, and configuration instruments.
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Extra info for Advantage Database Server: The Official Guide
FTS” stands for full text search, and these indexes permit you to quickly locate records based on the contents of text fields, including memo and binary fields. Overview of Index Files An index file is one that contains one or more index orders, also referred to as tags. An index file that contains only one index order is called a single-order index, but these are rare. Because you often need to access a table in a number of different ways, most developers include many index orders in a given index file.
For example, if you are using the ACE API, you must make a call to AdsEnableEncryption (for ADS tables) or AdsStmtSetTablePassword (for executing SQL statements against the table), passing the table name and the password as the arguments to the function call. You need to make one of these calls once per ADS table, prior to accessing it for the first time. Chapter 2: Creating Tables 33 34 Chapter 2: Creating Tables The following section describes how to encrypt and decrypt a free ADS table. For information about encrypting database tables, see Chapter 4.
The associated index could then be used to order customers by their customer ID, as well as to search for records based on customer ID. But index key expressions can also be more involved, and may include two or more field values, constants, functions, and a variety of operators, including concatenation, arithmetic, and Boolean. Every record in an ADS table has a unique record number, and each key points to a single record using this record number. Some types of index orders, such as expression indexes, have one key in the index order for each record in the associated table.