Easytrieve plus programming table of contents sysedcomputer education techniques, inc. The following table shows sql data types and their corresponding easytrieve plus field definitions. Pansophic systems, incorporated, 1983 computer programs. Tally contains the number of detail records that comprise a control break. The only packaged products life policies, unit trusts and other. Host variables are immediately preceded by a colon when they are referred to in an sql statement.
Tally is a systemdefined field for control reports. The value used is provided in the parameter listing at the end of the compile output. Decimal positions for numeric data items, you can indicate the number of decimal places 0 18 by adding the appropriate numeric value after the data format value. The first step uses db2ezp to separate the program into its easytrieve plus and sql components. Cobol db2 tutorial sample program db2 application programming. The problem is that easytrieve allows fields to be defined out of sequence. When not coded with the data item, the actual field name is used as a heading. Easytrieve has 3 sections all together 1 environment section optional the environment definition section establishes parameters for the program. Htwc mainframe modernization application migration. When using a ca easytrieve report generator file, however, fields see the native sql examples for the use of manual indicator values. Jul 06, 2015 the redefinition in the file entry is similar to the implied redefinition in a cobol programs file section entry.
If we assume that your file will be in sequence, and you want the easytrieve report to give similar output to your sort control card, then. The sum of all working storage fields cannot exceed 32k workstation only. This is what i am exactly trying to do but it is not working. It is simple enough for a beginner to use without additional training, and sophisticated enough to enable a data processing expert to perform complex tasks. Tally is commonly used to determine averages for a control break. This is only an internal identifier that is used to tie together the various parts of the variable definition. Easytrieve sample program display totals and summary. Compiling cobol with truncopt option will increase the maximum value of 2byte and 4byte fields to their maximum capacity. Variable initialization value clause equivalent functionality for redefines. Defining all field formats, including binary and unsigned packed fields. Once declare cursor is used, this is followed by open, fetch and finally close. Easytrieve guide for mainframe programmers 5 of 20 srinimf.
Look at sequence, specifying the field, control, specifying the field final noprint if you dont want a final total. Easytrieve conversions automated, maintainable, customized. I need to load the input from the file given in the ddname to the table defined inside the program. Cobol layout is the description of use of each field and the values present in it. As well as being familiar with caeasytrieve code, they will have become proficient at debugging programs. Easytrieve plus db2 page 10 information systems training is training. A larger project may involve multiple language conversions assembler, pli, cobol, etc.
Ca easytrieve calls the three sections environment library, and activity lets look at all three, and again you will see how similar dataminer and ca easytrieve truly are. Easytrieve language conversions are often only part of a companys overall attempt to optimize their it operations. For example, if i set the value of the array arr0 mydata. Report procedures report input before break after break before line after line endpage termination macros instream macros substitution parameters. It is part of a called program that maps to data items in the calling programs working storage.
The language incorporates many built in features to enable reports to be formatted simply and quickly. That is, the field types are considered and converted during the move, while the easytrieve plus move statement moves data as is without conversion. Introduction what caeasytrieve calls a program, dataminer calls a script. The biggest challenge writing the translator was to translate the easytrieve defined record and working storage layouts to cobol. Instream and external tables were used in easytrieve programs as the table parameter of the file statement declares that the file as the object of a search statement that accesses tables. Easytrieve free download as powerpoint presentation. They can either be working storage fields or fields in an active file. Every record in the file has a fixed record lengthlrecl of 80 bytes. The structure of a dataminer script is the same as a caeasytrieve program. Easytrieve plus methods of defining all types of record structures and field formats are consistent and easy to use, including. The eastrieve objects are mapped to cobol variables, thus achieving a complete recreation of the easytrieve application logic in cobol, whilst preserving the significant investment made in the. Heading report headings can be supplied in the field definition of a data item. The following example shows group and elementary items.
Conversion of cobol copybooks to easytrieve format showing 14 of 4 messages. Caeasytrieve calls the three sections environment library, and activity lets look at all three, and again you will see how similar dataminer and caeasytrieve truly are. Try %cblcnvrt macro of easytrieve i think its new function within 1. Easytrieve define wsvariable w 1 n define wsvariable w 1 n. It looks like you want a summary report, so look at that. Variables are a special case of magic words so our first step will be to define the variable as a magic word. When i display the variable be it working storage or be it the output file variables i can see the masked value in the sysout, but, when i write the same to the file, the masked value does not appear. The easytrieve presention by srinimf linkedin slideshare. The 8 is the length in bytes, so it represents 15 digits not 16 that another. Access modes are sequential or dynamic for the start statement. Mar 14, 2020 end users cannot change the value of a variable because it is predetermined by a bundle of php code that calculates its value.
Caeasytrieve plus is an information retrieval and data management system designed to simplify typical programming tasks. Easytrieve accepts an unlimited number of working storage fields constrained by available memory. Establishing initial values of workingstorage fields. Reverseengineering cobol via formal methods article pdf available in journal of software maintenance research and practice 51. Easytrieve, mainframe data tables actuarial outpost. Group items consist of one or more elementary items.
Ca easytrieve plus is an information retrieval and data management system designed to simplify typical programming tasks. The move statement transfers data strings from one storage location to another. Gt10 caeasytrieve reporting and file manipulation 3 days. The move statement is specially useful for moving data without conversion and for moving variablelength fields. Level number, data name, and value clause optional are used to describe a group item. So after declaration of the tables in the file statement, the search statement can be included in the jobsection as.
Easytrieve guide for mainframe programmers 4 of 20 srinimf. Conversion of cobol copybooks to easytrieve format. Will the working storage variables declared in program b be initialized every time it is called by program a or will the values be retained until t. This section lets you override standard caeasytrieveplus options and to choose a mode of operation. Accessing db2 tables using ca easytrieve can also be taught on this course if required. This is being done basically to highlight the select statement. A series of lab exercises will be used to reinforce the classroom education. Following are the data description entries used in cobol. You can use tally on a line statement or you can use it in calculations within report procedures. Host variables a host variable is a data item declared in cobol to use it in embedded sql. Thus, in the cobol program, the file buffer for the inputfile should be 80 bytes large. Allows fixed, variable, undefined, or spanned record formats.
The ibm migration utility specifies that it works with programs written using ca easytrieve plus. The heading can be specified by simply using the heading parameter of the field definition. Working storage fields must be uniquely named within working storage. The term variables comes from the source of their value. Easytrieve training caeasytrieve basic reporting case. Prerequisites the delegate should preferably have some experience of a computing language and be familiar with ispf. You can define working storage fields anywhere in a easytrieve library section, activity, or procedure. As a result, many layouts in easytrieve programs are badly fragmented and out of. Im coding a pdf application in acrobat using javascript, and need the ability to store data in the background after the document is closed. Since the dateofbirth entry has a specific starting location 103, the redefined fields will be coded after the original entry and will use the same storage locations as the original.
Ca easytrieve report generator is an information retrieval and data management system that is designed to simplify report programming. If there is insufficient storage to buffer all of the data, an eztvfm file is required. Introduction what ca easytrieve calls a program, dataminer calls a script. Easytrieve define ws variable w 1 n define ws variable w 1 n. This section lets you override standard ca easytrieve plus options and to choose a mode of operation. As a result, many layouts in easytrieve programs are badly fragmented and out of order. But, every inputrecord in the input file, can be broken down into three parts principalp, rateofinterestr, timet.
Easytrieve can be taught at the protech training facility in pittsburgh, pa or toronto, canada with version 11. Create executable load modules from easytrieve programs. Ibm imsdli applications programming manual program capabilities following is a list of some important ca easytrieve plus capabilities. W fields w fields are used mainly for additional report fields. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Define a working storage field comma, set it to, and then your report line reads. The cblcnvrt cobol to ca easytrieve plus routine converts cobol file. To run an easytrieve plus db2 program statically, it is necessary to use three separate catalogue procedures. Can we continue to run our programs written in ca easytrieve plus and ca easytrieve, and modify them in the easytrieve language without having ca easytrieve present. The best way of putting a cursor to use in a cobol program is to make use of declare cursor, which can be used either in procedure division operation or in working storage. For the exact values, refer to the ibm cobol compiler manual for your operating system.
Redefines clause is used to define a storage with different data description. Easytrieve a011 vsam type error file filename code. Will it also work with programs written with ca easytrieve. This course may be taught as part of a 5day session in combination with the easytrieve plus fundamentals course. It describes data files and their associated fields and any working storage requirements of the program. For employee table, host variable declaration is look like as follows. The linkage section is used to pass data from one program to another program or to pass data from a procedure to a program. Line field1, comma, field2, comma, field3 your report line will look something like this. The compiler work files record length is too small for the current job.
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