| Chapter 10 |
|
10
|
Maintaining Files
|
|
10.1
|
Viewing File Characteristics
|
|
10.1.1
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Performing an Error Check
|
|
10.1.2
|
Generating a Statistics Report
|
|
10.1.3
|
Using Interactive Mode
|
|
10.1.4
|
Examining a Sequential File
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|
10.1.5
|
Examining a Relative File
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|
10.1.6
|
Examining an Indexed File
|
|
10.2
|
Generating an FDL File from a Data File
|
|
10.3
|
Optimizing and Redesigning File Characteristics
|
|
10.3.1
|
Redesigning an FDL File
|
|
10.3.2
|
Optimizing a Data File
|
|
10.4
|
Making a File Contiguous
|
|
10.4.1
|
Using the Copy Utility
|
|
10.4.2
|
Using the Convert Utility
|
|
10.4.3
|
Reclaiming Buckets in Prolog 3 Files
|
|
10.5
|
Reorganizing a File
|
|
10.6
|
Making Archive Copies
|
| Appendix A |
|
Appendix A
|
Edit/FDL Utility Optimization Algorithms
|
|
A.1
|
Allocation
|
|
A.2
|
Extension Size
|
|
A.3
|
Bucket Size
|
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A.4
|
Global Buffers
|
|
A.5
|
Index Depth
|
| Glossary |
|
Glossary
|
Glossary
|
| Index |
| Index |
| Examples |
| 2-1 |
Creating a File Containing Collated Keys |
| 4-1 |
Sample Edit/FDL Utility Session |
| 4-2 |
Sample FDL File |
| 4-3 |
Using FDL Routines in a Pascal Program |
| 4-4 |
Using the FDL$CREATE Routine in a Fortran Program |
| 4-5 |
Using the FDL$CREATE Routine from a COBOL Program |
| 4-6 |
Tagging a File |
| 4-7 |
Accessing a Tagged File |
| 4-8 |
Using the CONVERT Routines in a Fortran Program |
| 4-9 |
Using the CONVERT Routines in a COBOL Program |
| 5-1 |
Using Logical Names for Remote File Access |
| 5-2 |
Selecting the USEROPEN Option to Call a Routine |
| 5-3 |
Using the Parse and Search Services |
| 6-1 |
Rooted-Directory Syntax |
| 7-1 |
Designing a Pause Between Attempts to Access a Record |
| 9-1 |
Specifying Run-Time Attributes |
| 9-2 |
Using the FDL$PARSE and FDL$RELEASE Routines |
| 10-1 |
Using ANALYZE/RMS_FILE to Create a Check Report |
| 10-2 |
Using ANALYZE/RMS_FILE to Create a Statistics Report |
| 10-3 |
Examining a Sequential File |
| 10-4 |
Examining a Relative File |
| 10-5 |
Examining an Area Descriptor Path |
| 10-6 |
Examining a Primary Record |
| 10-7 |
Examining an Alternate Record |
| 10-8 |
KEY and ANALYSIS_OF_KEY Sections in an FDL File |
| Figures |
| 1-1 |
Files--11 On-Disk Structure Hierarchy |
| 1-2 |
Single and Multiple File Extents |
| 1-3 |
Tracks and Cylinders |
| 1-4 |
DSI and FAT Structures in an XAR |
| 1-5 |
Interrecord Gaps |
| 1-6 |
Basic Layout of an ANSI Magnetic Tape Volume |
| 1-7 |
Single File on a Single Volume |
| 1-8 |
Single File on Multiple Tape Volumes |
| 1-9 |
Multifile/Single-Volume Configuration |
| 1-10 |
Multifile/Multivolume Configuration |
| 1-11 |
Blocked Fixed-Length Records |
| 1-12 |
Variable-Length Records |
| 1-13 |
Using CONVERT to Create a Data File |
| 1-14 |
Using CREATE/FDL to Create an Empty Data File |
| 2-1 |
Sequential Access to a Sequential File |
| 2-2 |
Sequentially Retrieving Records in a Relative File |
| 2-3 |
Sequentially Storing Records in a Relative File |
| 2-4 |
Random Access by Relative Record Number |
| 2-5 |
Random Access by Record File Address |
| 2-6 |
Comparison of Fixed- and Variable-Length Records |
| 2-7 |
Writing a VFC Record to a File |
| 2-8 |
Retrieving a VFC Record |
| 2-9 |
Sequential File Organization |
| 2-10 |
Relative File Organization |
| 2-11 |
Variable-Length Records in Fixed-Length Cells |
| 2-12 |
Single-Key Indexed File Organization |
| 2-13 |
Multiple-Key Indexed File Organization |
| 3-1 |
RMS Index Structure |
| 3-2 |
Primary Index Structure |
| 3-3 |
Finding the Record with Key 14 |
| 4-1 |
Line_Plot Graph |
| 4-2 |
Surface_Plot Graph |
| 4-3 |
Design Mnemonics |
| 7-1 |
Shared File Access |
| 7-2 |
RMS Buffers and the Application Program |
| 7-3 |
Using Global Buffers for a Shared File |
| 8-1 |
Using RFA Access to Establish Record Position |
| 10-1 |
Tree Structure for Sequential Files |
| 10-2 |
Record Layout and Content for SEQ.DAT |
| 10-3 |
Tree Structure of Relative Files |
| 10-4 |
Area Descriptor Path |
| 10-5 |
Key Descriptor Path |
| 10-6 |
Structure of Primary Records |
| 10-7 |
Structure of Alternate Records |
| 10-8 |
RMS Tuning Cycle |
| Tables |
| 1-1 |
Record Access Methods |
| 1-2 |
Record Formats |
| 1-3 |
File Structure Options on OpenVMS Systems |
| 1-4 |
Comparison of ODS-1, ODS-2, and ODS-5 Levels |
| 1-5 |
Files--11 Control Files |
| 1-6 |
Labels and Components Supported by OpenVMS Systems |
| 2-1 |
Supported Record Access Modes and File Organizations |
| 2-2 |
File Organization Characteristics |
| 2-3 |
Sequential File Organization: Advantages and Disadvantages |
| 2-4 |
Relative File Organization: Advantages and Disadvantages |
| 2-5 |
Indexed File Organization: Advantages and Disadvantages |
| 4-1 |
Summary of the Edit/FDL Utility Commands |
| 4-2 |
Edit/FDL Utility Scripts |
| 6-1 |
File Specification Defaults |
| 6-2 |
Example of Applying Defaults |
| 7-1 |
File Access Record Operations |
| 7-2 |
File-Sharing Record Operations |
| 7-3 |
Initial File Sharing and Subsequent File Access |
| 7-4 |
Initial File Access and Subsequent File Sharing |
| 7-5 |
Methods Available for Specifying No Query Record Locking |
| 7-6 |
Compatibility of Record-Locking Options |
| 8-1 |
Record Operations and File Organizations |
| 8-2 |
Search Key Types |
| 8-3 |
Record Access Stream Context |
| 10-1 |
ANALYZE/RMS_FILE Command Summary |
