Compaq COBOL AAQ2G1FTK User Manual page 15

6-1 Sample Record Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining Fixed-Length Record Size . . . . . . . . . . . . . . . . . . . . . . . .
6-2
6-3 Determining Fixed-Length Record Size for Files with Multiple Record
Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 Creating Variable-Length Records with the DEPENDING ON
Phrase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Variable-Length Records with the RECORD VARYING
6-5
Phrase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6 Creating Variable-Length Records and Using the OCCURS Clause
with the DEPENDING ON Phrase . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7 Defining Fixed-Length Records with Multiple Record Descriptions . . .
Defining a Disk File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-8
6-9 Defining a Magnetic Tape File (OpenVMS) . . . . . . . . . . . . . . . . . . . . .
Defining a Magnetic Tape File (Tru64 UNIX) . . . . . . . . . . . . . . . . . . .
6-10
6-11 Using Environment Variables for File Specification . . . . . . . . . . . . . . .
Using Environment Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-12
6-13 Specifying Sequential File Organization and Sequential Access Mode
for a Sequential File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-14 Specifying Relative File Organization and Random Access Mode for a
Relative File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying Indexed File Organization and Dynamic Access Mode for
6-15
an Indexed File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-16 Specifying Line Sequential File Organization with Sequential Access
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-17 SELECT Statements for Sequential Files with Sequential Access
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SELECT Statements for Relative Files with Sequential and Dynamic
6-18
Access Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-19 SELECT Statements for Indexed Files with Dynamic and Default
Sequential Access Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-20 SELECT Statements for Line Sequential Files with Sequential Access
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-21 OPEN and CLOSE Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-22 Creating a Sequential File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-23 Creating a Line Sequential File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-24 Creating a Relative File in Sequential Access Mode . . . . . . . . . . . . . .
6-25 Creating a Relative File in Random Access Mode . . . . . . . . . . . . . . . .
Creating and Populating an Indexed File . . . . . . . . . . . . . . . . . . . . . .
6-26
6-27 Using Segmented Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading a Sequential File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-28
6-29 Reading a Relative File Sequentially . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading a Relative File Randomly . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-30
6-31 Reading a Relative File Dynamically . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading an Indexed File Sequentially . . . . . . . . . . . . . . . . . . . . . . . . .
6-32
6-33 Reading an Indexed File Randomly . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading an Indexed File Dynamically . . . . . . . . . . . . . . . . . . . . . . . . .
6-34
6-35 Reading an Indexed File Dynamically, with READ PRIOR . . . . . . . . .
6-36 Rewriting a Sequential File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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