Difference between revisions of "Test268 Section 1"

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(Use database file I/O operations in a program)
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=== Use display file I/O operations in a program ===
 
=== Use display file I/O operations in a program ===
  
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Write a display record:
  
 
=== Use externally described database files in a program ===
 
=== Use externally described database files in a program ===

Revision as of 16:25, 29 November 2005

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Section 1 - Externally Described Files in Programs (14%)

Use printer files and "O" specs to define output in a program

Use database file I/O operations in a program

Grab one particular record in a file:

      chain (employee) empfile;

Write a record:

      write roperator;

Set the pointer to a spot in the file then read all records that match the key:

      setll (employee) emphist;
      reade (employee) emphist;
      
      dow not %eof();
        ::: Logic here :::
        reade (employee) emphist;
      enddo;

Update a record:

      update record;

Use display file I/O operations in a program

Write a display record:

Use externally described database files in a program

Use externally-described printer files in a program

Use externally-described display files in a program

Create DDS externally described files

Create SQL externally described files

Use EXTFILE. EXTMBR and OPEN/CLOSE file operations in a program

When using externally described files, rename fields

When using externally described files, show how to rename record formats in a program

Create Physical, Logical/View, Printer, and Display externally described files

Use a field reference file to create an externally described file