Advanced structured COBOL

목차 (Table of Contents)

• CONTENTS
• Preface = xi
• 1. Single-Level Tables = 1
• 1.1 Introduction = 1
• 1.2 What Are Tables? = 2
• 1.2.1 Defining Tables = 2
• 1.2.2 Loading Tables with Values = 4
• 1.3 Compile-Time Tables = 4
• 1.3.1 Loading Compile-Time Tables : The REDEFINES Clause = 5
• 1.3.2 Searching Tables : The PERFORM Statement with the VARYING Option = 8
• 1.3.3 An Example COBOL Program = 10
• 1.3.4 Alternative Ways to Search Tables : Indexing = 16
• 1.3.5 The SET Statement = 17
• 1.3.6 An Example COBOL Program = 18
• 1.3.7 Variable-Sized Tables = 20
• 1.3.8 Alternative Ways to Search Tables : The SEARCH Statement = 21
• 1.3.9 An Example COBOL Program = 21
• 1.3.10 Alternative Ways to Search Tables :The SEARCH ALL Statement = 23
• 1.3.11 An Example COBOL Program = 24
• 1.4 Execution-Time Tables = 26
• 1.4.1 Loading Execution-Time Tables = 26
• 1.4.2 An Example COBOL Program = 26
• 1.4.3 Execution-Time Tables as Accumulators = 34
• 1.5 Debugging Clinic = 39
• 1.6 Chapter Summary = 39
• 1.7 End-of-Chapter Checklist = 40
• Exercises = 41
• 2. Multilevel Tables = 47
• 2.1 Introduction = 47
• 2.2 Two-Level Tables = 47
• 2.2.1 Defining Two-Level Tables = 48
• 2.3 Two-Level Compile-Time Tables = 49
• 2.3.1 An Example COBOL Program = 49
• 2.3.2 The PERFORM Statement with the VARYING AFTER Option = 56
• 2.3.3 Searching Two-Level Tables = 59
• 2.4 Two-Level Execution-Time Tables = 62
• 2.5 Three-Level Tables = 64
• 2.5.1 Defining Three-Level Tables = 64
• 2.6 Three-Level Compile-Time Tables = 65
• 2.6.1 An Example COBOL Program = 65
• 2.6.2 The PERFORM Statement with the VARYING AFTER AFTER Option = 71
• 2.7 Debugging Clinic = 72
• 2.8 Chapter Summary = 74
• 2.9 End-of-Chapter Checklist = 75
• Exercises = 76
• 3. Advanced Sort／Merge = 81
• 3.1 Introduction = 81
• 3.2 Preprocessing of an Unsorted Input File = 81
• 3.2.1 The SORT Statement with an INPUT PROCEDURE = 82
• 3.2.2 The RELEASE Statement = 83
• 3.2.3 An Example COBOL Program = 84
• 3.3 Postprocessing of a Sort Work File = 88
• 3.3.1 The SORT Statement with an OUTPUT PROCEDURE = 88
• 3.3.2 The RETURN Statement = 89
• 3.3.3 An Example COBOL Program = 89
• 3.4 Preprocessing of an Input File and Postprocessing of a Sort Work File = 94
• 3.5 The MERGE Statement = 97
• 3.6 Debugging Clinic = 97
• 3.7 Chapter Summary = 98
• 3.8 End-of-Chapter Checklist = 99
• Exercises = 100
• 4. Sequential File Processing = 103
• 4.1 Introduction = 103
• 4.2 Processing Sequential Files = 104
• 4.2.1 Existing Master File = 104
• 4.2.2 Transaction File = 105
• 4.2.3 New Master File = 107
• 4.2.4 Audit／Error Report = 107
• 4.2.5 Processing Principles = 109
• 4.3 Two Example COBOL Programs = 110
• 4.3.1 Program to Create a Sequential File = 110
• 4.3.2 Program to Update a Sequential File = 116
• 4.4 Debugging Clinic = 143
• 4.5 Chapter Summary = 145
• 4.6 End-of-Chapter Checklist = 146
• Exercises = 146
• 5. Indexed File Processing = 153
• 5.1 Introduction = 153
• 5.2 Organization of Indexed Files = 154
• 5.2.1 Disk Cylinders and Tracks = 154
• 5.2.2 Accessing Data from Indexed Files = 155
• 5.3 Disk Storage for Indexed Files = 156
• 5.4 Indexed File Access Methods = 157
• 5.4.1 Modifications for Processing Indexed Files = 158
• 5.4.2 Summary of COBOL Statements Allowed for Indexed Files = 162
• 5.5 An Example COBOL Program to Create Indexed Files = 162
• 5.6 An Example COBOL Program for Indexed File Maintenance = 170
• 5.7 Updating Indexed Files = 196
• 5.8 Reorganizing Indexed Files = 196
• 5.9 Debugging Clinic = 198
• 5.10 Chapter Summary = 200
• 5.11 End-of-Chapter Checklist = 201
• Exercises = 202
• 6. Relative File Processing = 211
• 6.1 Introduction = 211
• 6.2 Characteristics of Relative Files = 211
• 6.2.1 File Address Modes = 212
• 6.2.2 Delete Byte = 212
• 6.2.3 Record Key = 212
• 6.3 Relative File Organization = 212
• 6.3.1 Directly Addressed Relative Files = 212
• 6.3.2 Indirectly Addressed Relative Files = 213
• 6.4 Program Modifications for Relative Files = 214
• 6.4.1 Modifications in the ENVIRONMENT DIVISION = 214
• 6.4.2 Modifications in the DATA DIVISION = 215
• 6.4.3 Modifications in the PROCEDURE DIVISION = 215
• 6.5 Summary of Statements for Relative Files = 219
• 6.6 Two Example COBOL Programs = 219
• 6.6.1 Relative File Creation Program = 219
• 6.6.2 Relative File Maintenance Program = 222
• 6.7 Debugging Clinic = 241
• 6.8 Chapter Summary = 242
• 6.9 End-of-Chapter Checklist = 242
• Exercises = 243
• 7. File Processing under the Customer Information Control System (CICS) = 247
• 7.1 Introduction = 247
• 7.1.1 How CICS Works = 248
• 7.1.2 CICS Transaction Processing = 249
• 7.1.3 CICS Processing Modes = 250
• 7.1.4 CICS Modules = 252
• 7.2 CICS Tables = 253
• 7.2.1 File Control Table (FCT) = 254
• 7.2.2 Processing Program Table (PPT) = 255
• 7.2.3 Program Control Table (PCT) = 256
• 7.3 CICS File-Control Commands = 257
• 7.3.1 ANSI COBOL Codes Not Included = 257
• 7.3.2 READ in CICS = 257
• 7.3.3 WRITE in CICS = 258
• 7.3.4 REWRITE in CICS = 259
• 7.3.5 DELETE in CICS = 259
• 7.3.6 UNLOCK in CICS = 260
• 7.4 Handling Exceptional Conditions = 260
• 7.5 An Example CICS Program to Update Files = 262
• 7.6 Chapter Summary = 269
• 7.7 End-of-Chapter Checklist = 270
• Exercises = 270
• 8. Variable-Length Record Processing = 271
• 8.1 Introduction = 271
• 8.2 Types of Variable-Length Records = 272
• 8.3 Variable-Length Record Descriptions = 274
• 8.3.1 Fixed-Length Records of Variable Lengths = 275
• 8.3.2 Records with Variable Numbers of Repeating Groups = 277
• 8.3.3 Records with One Variable-Length Field = 280
• 8.4 An Example COBOL Program = 281
• 8.5 Debugging Clinic = 302
• 8.6 Chapter Summary = 303
• 8.7 End-of-Chapter Checklist = 304
• Exercises = 304
• 9. Interactive Programming = 315
• 9.1 Introduction = 315
• 9.1.1 Interactive versus Batch Environments = 316
• 9.1.2 Interactive Approach = 317
• 9.1.3 Novice versus Experienced Users = 321
• 9.2 Screen Design Principles = 322
• 9.2.1 Conversational Styles = 322
• 9.2.2 Screen Tactics = 325
• 9.3 Interactive Algorithms = 328
• 9.3.1 Password Access = 329
• 9.3.2 Menu Processing = 329
• 9.3.3 Data Entry = 330
• 9.3.4 User Help Functions = 331
• 9.3.5 Error Processing = 334
• 9.4 Dialogue Commands = 335
• 9.4.1 DISPLAY = 335
• 9.4.2 ACCEPT = 336
• 9.4.3 DISPLAY／ACCEPT Combinations = 336
• 9.5 ANSI COBOL Interactive Options = 337
• 9.5.1 Screen Tactics with ANSI COBOL = 338
• 9.5.2 Screen Positioning = 338
• 9.6 Extended COBOL Options = 339
• 9.6.1 Screen Positioning = 339
• 9.6.2 Highlighting = 340
• 9.6.3 Data Conversion = 341
• 9.6.4 Other Data Input Features = 342
• 9.6.5 Default Values = 343
• 9.6.6 Erasing Screens = 343
• 9.6.7 Extended COBOL Interactive Program = 344
• 9.7 CICS Interactive Programming = 358
• 9.7.1 Conversational Programming = 358
• 9.7.2 Creating Maps = 360
• 9.7.3 Symbolic Maps and the Compile = 364
• 9.7.4 A CICS Interactive Program = 366
• 9.8 Chapter Summary = 369
• 9.9 Chapter Checklist = 370
• Exercises = 371
• 10. Subprograms = 375
• 10.1 Introduction = 375
• 10.2 System Development Considerations = 377
• 10.3 When Not to Use Subprograms = 379
• 10.3.1 CALL versus COPY = 379
• 10.3.2 Cohesiveness and Decoupling = 379
• 10.4 Calling Subprograms = 381
• 10.4.1 CALL Statement = 382
• 10.4.2 EXIT and GOBACK = 382
• 10.4.3 An Example without Passing Data = 383
• 10.5 Passing Data between Programs = 383
• 10.5.1 LINKAGE SECTION = 384
• 10.5.2 USING Statement = 384
• 10.5.3 Passing Data Two Ways = 386
• 10.5.4 EXTERNAL Qualifier = 387
• 10.6 Nested Subprograms = 390
• 10.6.1 How to Nest Subprograms = 392
• 10.6.2 GLOBAL Qualifier = 394
• 10.6.3 COMMON Qualifier = 394
• 10.7 Multiple-Level Calls = 395
• 10.8 Initializing Subprograms = 397
• 10.8.1 CANCEL = 398
• 10.8.2 INITIAL PROGRAM = 398
• 10.8.3 USING BY CONTENT = 398
• 10.9 Interactive Programming Example = 399
• 10.10 CICS Subprograms = 408
• 10.10.1 LINK = 408
• 10.10.2 XCTL = 408
• 10.10.3 RETURN = 409
• 10.10.4 COMMAREA = 410
• 10.10.5 CICS Interactive Programming Example = 412
• 10.11 Testing Subprograms = 421
• 10.12 Dynamic Calls = 422
• 10.13 Calling subprograms in Other Languages = 422
• 10.14 Debugging Clinic = 424
• 10.15 Chapter Summary = 424
• 10.16 End-of-Chapter Checklist = 425
• Exercises = 426
• APPENDIXES
• A. COBOL Reserve Words A-1
• B. Formats of COBOL-74 and COBOL-85 Elements B-1
• C. Answers to Odd-Numbered Exercises C-1
• D. Character Manipulation D-1
• E. Report Writer E-1
• F. Interactive Programming on Microcomputers F-1
• G. Job Control Language G-1
• H. COBOL's Interface with Database Management Systems H-1
• Index I-1