Content Inside :
Accessing Your Data Warehouse with Visual FoxPro. Statements and Program Control Structures, Functions and Procedures, Program Design, Program Headers, Comments and Inline Documentation, Using Descriptive Variable Names, Program Modularity, Programs in the Visual FoxPro Environment, Creating a Program, Saving a Program, Running a Visual FoxPro Program, Wrap-up, Statements can be declarations, calculations, program flow controls, SQL queries, input/output directives, environment directives or comments. Examples of statements have been provided in code samples in previous sessions as declarations, assignments, calculations, input/output and environment controls, and are reviewed here. To specify the range of records that the record pointer will move through, the Scope option can be specified as follows. Functions are small programs used to consistently return values from a series of calculations or operations on data. Unlike procedures, multiple functions can be used within a statement to provide a number of different values or formats to represent different ways of looking at variables or data elements. Procedures are similar to functions except they do not necessarily return a value. For example, a procedure can be used to make a log entry in a table when a condition is raised, which does not return a value yet affects the values stored in a table.
Tags : visual foxpro program, program control structures, record pointer, program modularity, program headers, foxpro data, environment controls, data elements, flow controls, program flow, sql queries, variable names, code samples, input output, data warehouse
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