How do I add comments in Sysin JCL?
An asterisk (*) in column 1 denotes a comment. All lines beginning with asterisks are ignored.
How do you comment on a sort card?
We can make use of comments. And we can make a SORT statement as a comment by placing “*” in the first character of the statement. Also we can place comments at end of each sort statement leaving a single space character after the statement.
What is Syncsort used for?
SyncSort is a high speed replacement for the IBM SORT program. The SORT program is used to sort data into a certain sequence or to merge from two to sixteen previously sorted input data sets into one output data set. A rich set of data selection and modification tools also are also available.
What is the difference between Dfsort and Syncsort?
DFSORT is IBM’s sort product. Syncsort is Syncsort’s sort product. CA-Sort is CA’s sort product. PGM=SORT or PGM=ICEMAN will invoke the sort product used at your site which could be DFSORT, Syncsort or CA-SORT.
What does /* mean in JCL?
data definition. Identifies and describes a data set. /* delimiter. Indicates the end of data placed in the input stream.
How do you write comments in JCL?
Select the lines that you want to comment or uncomment in the JCL Editor. If you do not select any lines, only the line that contains the cursor is commented or uncommented. Select Source > Toggle Comment or press Ctrl+/. The JCL Editor scans the lines that you select for //* characters in the first three columns.
What are utilities in mainframe?
JCL Utilities are pre-written programs, widely used in mainframe to achieve day-to-day requirements, organizing and maintaining data. It is used to reorganize, change or compare data at the data set or record level. These utilities allow to manipulate data sets, which are provided as input to the programs.
What are utility programs in mainframe?
Utility programs are pre-written programs, widely used in mainframes by system programmers and application developers to achieve day-to-day requirements, organising and maintaining data.
What is Dfsort in JCL?
DFSORT is a powerful IBM utility used to copy, sort or merge datasets. SORTIN and SORTINnn DD statements are used to specify input datasets. SORTOUT and OUTFIL statements are used to specify output data. SYSIN DD statement is used to specify the sort and merge conditions.
What is the use of Icetool in JCL?
ICETOOL is a multipurpose DFSORT utility that uses the capabilities of DFSORT to perform multiple operations on one or more data sets in a single step. This chapter introduces you to ICETOOL’s 17 “operators”, which allow you to do a wide variety of tasks.
How do you comment in JCL?
Select Source > Toggle Comment or press Ctrl+/. The JCL Editor scans the lines that you select for //* characters in the first three columns. If all lines that you select contain the //* characters in the first three columns, the //* characters are removed.
How do you restart a job in JCL?
JCL RESTART is an optional keyword parameter which is used to restart a job from a particular step. Suppose, you have a JCL which has 3 steps(STEP1, STEP2, and STEP3) and you want to run the JCL directly from STEP3, then you can directly code the RESTART parameter at STEP3.
How do I add comments in mainframe?
If you want to comment a line, simply code //* in the first 3 columns in a JCL. Similarly, If you want to comment multiple lines, you have to comment //* in the first 3 columns of each line.
What is the maximum limit of GDG?
Extended format for generation data groups (GDGs):
Extended format GDGs can contain up to 999 generation data sets (GDSes). The previous GDS limit was 255 GDSes per GDG. New GDGs can be defined with this new extended format.
How is GDG defined in JCL?
Defining GDGs in a JCL. Generation Data Groups (GDGs) are group of datasets related to each other by a common name. The common name is referred as GDG base and each dataset associated with the base is called a GDG version. For example, MYDATA.
What is a GDG file in mainframe?
A generation data group (GDG) is a collection of historically related non-VSAM data sets that are arranged in chronological order. That is, each data set is historically related to the others in the group. Within a GDG, the generations can have like or unlike DCB attributes and data set organizations.
How can we find duplicate records in JCL?
SORT in JCL
- Sort a particular field or position in ascending or descending order.
- Removing the duplicate records from the file.
- To find a bad record from the list of records.
- Copy the input file by including or excluding a few/some records.
- Merging the fields from the input.
How do I remove duplicates in VSAM?
Use SORT to sort the file on the VSAM key and use SUM FIELDS=NONE to remove duplicate keys.
What is catalog and Uncatalog in JCL?
Catalogs are used to retain information about datasets, such as volume(s), device type, etc. If you simply UNCATALOG a dataset, you can still use 3.4 but you must supply the volume information. Also, a dataset can be deleted but not uncataloged.
What is Iebedit in JCL?
IEBEDIT. Used to copy selected parts of a JCL. For Example, if a JCL has 5 steps and we require to execute step 1 and 3 only, then a IEBEDIT JCL can be coded with a dataset which contains the actual JCL to be executed. In the SYSIN of IEBEDIT, we can specify STEP1 and STEP3 as parameters.
How do you only run 2 steps in JCL?
JCL, SQL and code in programs have an irritating habit of doing what you say, not what you meant. HI Deepu, Put RESTART commnad in the job card like RESTART=STEP004 and put a null character (// ) after STEP005,so it will start from step4 and end in step5,only 2 steps will execute…
How check if file is empty in JCL?
If the input file is empty, then this step will give RC = ’04’. If it is not empty, then this step will give RC = 0. Trapping the return code of this step one can say whether the input was empty.
How do you comment on a statement?
You can include a comment in a statement in two ways:
- Begin the comment with a slash and an asterisk (/*). Proceed with the text of the comment. This text can span multiple lines.
- Begin the comment with — (two hyphens). Proceed with the text of the comment. This text cannot extend to a new line.
How do you skip steps in JCL?
COND parameter is JCL can be used to skip a step based on the return code from the previous step or steps of the JCL. 2. This COND parameter can also be used to skip a step based on the return code from a previous step or steps in PROC.
How increase GDG limit in JCL?
If you use the access method services ALTER command to increase the GDG limit, no rolled-off GDSs or deferred roll-in GDSs are rolled in. When you increase the GDG limit, you must use the ALTER ROLLIN command to roll in the rolled-off generations if you need to access them.