EZTP-62-Reference.pdfEasytrieve new version refere

文件名称: EZTP-62-Reference.pdf

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详细说明：Easytrieve new version reference guide, IBM 大型主机技术。Contents Chapter 1: About This Guide Purpose and audience l-1 Organization 1-1 Other CA-Easytrieve/ Plus Publications 1-3 Related publications Documentation conventions Variable parameters 1-6 Flowchart Symbols 1-7 Chapter 2: General Information Introduction Environment Capabilities File access Character Set Support 2-2 Field definition Logic process File Output Report Output Virtual File manager 2-5 Debugging Capabilities 2-5 Current Technology Summary of revisions Expanded SQL Processing 2-6 IF BREAK/HIGHEST BREAK Class Tests RETURN-CODE for VSe CA-Librarian macro Support 2-7 New CoNtrolsKip Parameter on the report statement Read access to LINE-Count and PAGE-COUNT 2-7 RESet Parameter on file statement Contents Default Disk Type(VSE Only) EVEn Parameter on define statement 2-7 HEADING Parameter in the SQL INCLUDE Statement 2-7 WITH HOLD Option on SQL DECLARE CURSOR Statement(DB2 Only CONNECT Statement Improves Data Access SOLSYNTAX Parameter on PARM Statement PLAN Parameter on PARM Statement(DB2 Only PLANOPTS Parameter on PARM Statement(CA-Datacom SQL only) 2-8 SELECT INTO Support(DB2 Only) DB2-DL/I Batch Support IDD Updating IDMS RETURN KEY Support SOL with CA-IDMS 2-9 CA-Datacom SQL Support Year 2000 Support 2-10 Chapter 3: System Overview Modes of Operation 3-1 Structure of a program 3-1 Environment Definition Section 3-2 Library definition section 3-2 activity definition Section 3-2 Program Flow 3-5 Syntax rules Statement area Character sets Multiple statements 3-10 Comments 3-10 Continuations 3-11 Words and delimiters 3-12 Kevwords 3-12 Multiple parameters 3-12 Field names 3-13 Labels 3-13 EBCDIC Alphabetic literals 3-13 Numeric literals 3-14 EBCDIC Format hexadecimal Literals 3-14 DBCS Format Literals 3-14 DBCS Format Hexadecimal Literals 3-15 MIXED Format Literals 3-15 CA-Easytrieve/Plus Reference Guide Alphabetic conversion literals 3-15 Katakana conversion literals 3-16 Hiragana Conversion literals 3-17 User Converted literals 3-17 Format and Conversion rules 3-18 Format relationship rules 3-20 Identifie 3-21 Arithmetic Operators 3-21 Chapter 4: Environment Definition PARM Statement 4-1 Environment modification Us 4-1 PARM Statement Syntax PARM Statement Parameters 4-5 PARM Statement Examples 4-17 Chapter 5: Data Definition Defining data File attributes Field data 5-2 COPY Statement 5-2 Data reference 5-2 FILE Statement Syntax FILE Statement parameters File Types 5-5 Device Types Record format Examples 5-14 DEFINE Statement 5-15 DEFINE within an Activity 5-15 File fields 5-15 Working Storage Fields 5-16 Basic field definition 5-16 DEFINE Syntax 5-17 Contents v Parameters 5-18 Location 5-18 Attributes 5-19 Data format 5-19 DEFINE Statement Examples Record layouts 5-25 Overlay redefinition 5-26 Working Storage Initialization 5-26 Varying length Fields 5-26 Displaying Varying Length Fields 5-27 Assigning and Moving Varying Length Fields 5-27 Alternate Report Headings -28 Signed /Unsigned Rules Signed Unsigned Edit masks 5-29 Editin Rules 30 Leading Zeros Printing 5-30 Suppressin g Replacing 5-31 Negative Numbers 5-31 COPY Statement 5-31 5-31 Example 5-32 COPY Rules for database files 5-32 Examples 5-33 Data reference Unique Name 5-33 Qualification 5-34 Indexing 5-34 System-Defined Fields 5-34 General fields 5-34 File fields Report fields 5-36 CA-Easytrieve/Plus Reference Guide Chapter 6: Processing Activities Introduction JOB Activities SORT Activities 6-1 JOB Statement Syntax 6-2 Parameters 6-2 Job Flow 6-4 SORT Statement Syntax Parameters 6-8 Sorting fil 6-14 Sort procedures 6-15 Sort flow 6-16 SELECT Statement 6-18 Syntax 6-18 Sorting a Selected Portion of a File 6-18 Chapter 7: Assignments and Moves Introduction 7-1 Arithmetic Expressions Syntax Operation 7-2 Parentheses 7-2 Evaluations Assignment Statement Format 1(Normal assignment) Format 2 Logical Expression) Examples -8 EBCDIC TO DBCS Conversion -10 Format 1 (Normal assignment 7-11 MOVE Statement 7-15 Syntax -15 Variables -16 E 7-17 MOVE LIKE Statement -17 7-17 Operation 7-17 Exampl 7-18 Contents vi Chapter 8: Decision and Branching Logic Introduction 8-1 Conditional Expressions Simple conditions 8-2 Extended Conditions DBCS Considerations Varying Length Fields Combined conditions 84 Field elational Condition 8-4 Syntax 8-4 Operation 8-4 Alphanumeric Subjects 8-5 Numeric subjects Mixed Subjects DBCS Subjects 6 E xample Field series condition 8-7 Operation Rules for evaluation 8-8 Example Field class condition vntax Operation 8-10 Rules for evaluation 8-10 Example 8-12 Field bits condition 8-13 8-13 Operation 8-13 Example 8-14 File presence Condition 8-14 Syntax 814 Operation 8-14 Example 8-15 File presence series Condition 8-16 Syntax 816 Operation 8-16 E xam 8-16 Record relational Condition 8-17 Syntax 8-17 Operation 8-17 Example 8-18 vill CA-Easytrieve /Plus Reference Guide IF, ELSE-IF, ELSE, and end-if Statements 8-18 Syntax 18 Operation 8-19 Example 8-20 DO and end-DO Statements 8-22 Syntax 8-22 Operation 8-22 Nesting 8-23 E ole 8-24 CASE Statement 8-25 yntax 8-25 Operation 8-25 xan 8-27 GOTO Statement 8-27 Syntax 8-27 Operation 27 E xample Statement label 8-28 8-28 Operation Example 8-30 PERFORM Statement 8-31 yntax 8-31 Operation 8-31 Example 8-31 STOP Statement 8-32 8-32 Operation 8-32 Exampl dle 8-32 Conditional execution 8-32 Example 8-33 Termination 8-33 Chapter 9: InputoUtput Specification Introduction STATUS Parameter DISPLAY Statement 9-2 Syntax 2 E. am P 9-7 Contentsⅸ GET Statement 9-7 Operation 9-8 Example POINT Statement Syntax 9-8 Operatic Example 9-10 PRINT Statement 9-10 vntax 9-10 Operation 9-10 PUT Statement 9-11 9-11 9-12 READ Statement 9-12 vntax 9-12 Operation 9-12 E 9-13 WRITE Statement 9-14 yntax 14 Example 9-15 Chapter 10: Procedure Processing 10-1 Procedure Syntax 10-2 Operation 102 Invoking procedures l0-3 PERFORM Statement 10-3 START and FINISH Parameters (Ob 10-4 BEFORE Parameter (SORT 10-4 Special-name Report Procedures 10-5 Procedure placement 10-5 Example x CA-Easytrieve/Plus Reference Guide

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