Advanced COBOL

목차 (Table of Contents)

• CONTENTS
• PREFACE = ix
• ACKNOWLEDGMENT = xi
• 1 PROGRAM STRUCTURE = 1
• Introduction = 1
• Characteristics of Good Programs = 2
• Partitioning = 4
• Hierarchies and Networks = 5
• Structure Charts = 15
• Exercises = 19
• 2 PROGRAM COHESION = 21
• The Black Box Concept = 21
• Cohesion in Programs = 23
• Functional Cohesion = 24
• Coincidental Cohesion = 25
• Class-Oriented Cohesion = 27
• Time-Related Cohesion = 30
• Procedural Cohesion = 31
• Data-Related Cohesion = 33
• Sequential Cohesion = 33
• Levels of Cohesion = 35
• Exercises = 36
• 3 PROGRAM DESIGN = 37
• Introduction = 37
• Content Coupling = 38
• Module Size = 40
• Span of Control = 44
• Fan-In = 46
• Levels of Decision = 50
• Inversion of Authority = 54
• Control Based on Physical Contiguity = 55
• Top-Down Design = 57
• Example of Top-Down Design = 60
• Exercises = 64
• 4 ELEMENTS OF COBOL = 67
• COBOL Characters and Words = 67
• Data-Names = 69
• Level Numbers = 74
• Variables and Constants = 76
• Statements and Sentences = 80
• COBOL Format specifications = 81
• The Divisions of a COBOL program = 84
• The COBOL Coding Form = 87
• The COPY Verb = 88
• The Operating System and the Execution of COBOL Programs = 92
• Summary of Common COBOL Statements = 94
• Sample Program = 103
• Exercises = 106
• 5 DATA DIVISION FEATURES = 111
• Introduction = 111
• The PICTURE Clause for Data Description = 114
• The PICTURE Clause for Data Editing = 121
• The BLANK WHEN ZERO Clause = 130
• Condition-Names = 130
• The VALUE Clause = 132
• Qualification = 133
• Mulitple-Data Records = 136
• The REDEFINES Clause = 138
• The RENAMES Clause = 140
• The CURRENCY and DECIMAL-POINT Clauses = 142
• Exercises = 143
• 6 IMPERATIVE STATEMENTS = 149
• Introduction = 149
• File Input and Output = 149
• WRITE with the LINAGE Clause = 153
• The ACCEPT and DISPLAY Verbs = 156
• Arithmetic Verbs = 158
• The COMPUTE Verb = 163
• Arithmetic Precision = 167
• Data Transfer = 176
• The MOVE CORRESPONDING = 178
• The PERFORM Verb = 180
• Exercises = 185
• 7 CONDITIONAL STATEMENTS = 193
• Introduction = 193
• Relation Conditions = 194
• Nested Conditions = 196
• Class Conditions = 207
• Using Conditionals to Check Input Data = 209
• Sign Conditions = 212
• Condition-Name Conditions = 213
• Complex Conditions = 214
• Exercises = 216
• 8 NUMERIC AND CHARACTER DATA = 221
• Data Representation = 221
• The USAGE Clause = 226
• The SYNCHRONIZED Clause = 230
• Alphabets and Collating Sequences = 232
• The JUSTIFIED RIGHT Clause = 240
• The STRING and UNSTRING Verbs = 241
• The INSPECT Verb = 248
• Exercises = 252
• 9 SUBPROGRAMS = 255
• Introduction = 255
• Calling and Called Programs = 257
• Subprogram Data Linkage = 262
• Transfer of Control = 269
• Sample main and Subprogram Structure = 272
• Exercises = 281
• 10 STRUCTURED PROGRAMMING = 283
• Introduction = 283
• Three Basic Program Structures = 284
• Additional Program Structures = 287
• Formatting Rules for Programs = 290
• Program Layout = 294
• Converting Unstructured Programs to Structured Form = 299
• Exercises = 309
• 11 PROGRAM TESTING = 313
• Introduction = 313
• Top-Down Program Development and Testing = 316
• Bottom-Up Program Development and Testing = 320
• Top-Down vs. Bottom-Up Approaches to Testing = 322
• Testing Procedures = 323
• Common Errors = 328
• COBOL Debugging Feature = 334
• Exercises = 341
• 12 REPORT GENERATION = 343
• Introduction = 343
• Control Breaks in Report Writing = 345
• Logic of Report Programs = 347
• The Report Writer Feature - A Basic Example = 350
• Report Writer with Control Breaks = 364
• Report Writer using Declaratives = 376
• Language Specifications for the COBOL Report Writer = 380
• Exercises = 386
• 13 TABLE HANDLING = 389
• Table Definitions in COBOL = 389
• An Example of a Table of Constant Values = 397
• The OCCURS…DEFENDING ON Option = 398
• The PERFORM Verb and Table Handling = 400
• Sample Program with a Two-Dimensional Table = 403
• Sample Program with Graphic Output = 405
• Table Searching = 408
• COBOL Language Options in Table Searching = 414
• Sample Program with Indexing and Searching = 421
• Exercises = 424
• 14 SEQUENTIAL FILES = 433
• File Organization = 435
• File Labels = 433
• Record Blocking = 439
• COBOL Instructions for Sequential Files = 444
• Sample Program to Create a Sequential File = 454
• I／O Exception Processing = 454
• Master File Maintenance = 461
• A General Programming Model for Updating Sequential Files = 467
• Transaction Records and File Maintenance = 472
• Activity Ratios and File Maintenance = 476
• Exercises = 479
• 15 SORTING AND MERGING = 489
• Introduction = 489
• Internal Sorting = 489
• COBOL File-Sort Feature = 498
• SORT Statement Formats = 505
• File Merging = 509
• File Merging in COBOL = 513
• Exercises = 516
• 16 INDEXED SEQUENTIAL FILES = 521
• Introduction = 521
• Indexed Sequential File Organization = 521
• Adding Records to an Indexed Sequential File = 526
• Sequential and Random Access with an Indexed Sequential File = 530
• VSAM - An Alternate Index Structure = 532
• An Example of the Creation of an Indexed File = 537
• COBOL Language Instructions for Indexed Files = 540
• An Example of Processing an Indexed File = 548
• Exercises = 549
• 17 RELATIVE FILES = 555
• Relative File Organization = 555
• The Division Remainder Method = 558
• Other Key-to-Address Transformation Methods = 561
• COBOL Statements for Relative Files = 564
• An Example of Creating A Relative File = 567
• An Example of Updating A Relative File = 570
• Exercises = 576
• APPENDIX A ANS COBOL RESERVED WORDS = 579
• APPENDIX B COMPLETE ANS COBOL LANGUAGE FORMATS = 583
• INDEX = 603