Chapter 12, “Using the ICETOOL utility,” on page shows you how a multipurpose DFSORT utility that uses the capabilities of DFSORT to. DFSORT example. The example in this section shows the JCL and control statements for a simple DFSORT job that uses symbols. Let’s say you created a. DFSORT messages and return codes. . DFSORT input/user exit/output logic examples multi-purpose DFSORT utility ICETOOL.
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The minor control fields are specified following the major control field. DFSORT produces sorted records for output according to the collating rules defined in the active locale.
Utility programs are pre-written programs, widely used in mainframes by system programmers and application developers to achieve ufility requirements, organising and maintaining data. Signed numeric with leading overpunch sign.
If locale processing is to be used, the active locale will only be used to process character CH control fields.
Two-digit packed-decimal year data. Frequently used sort tricks using these utilities are explained in the next chapter. None; must be specified. Usually, this dfwort not recommended in view of performance for large files. When you determine the total, count a binary field as occupying an entire byte if it dfsoft any part of it.
A binary field beginning on the third bit of the third byte of a record is represented as 3. Character with alternate collating sequence. The number of bits specified must not exceed 7.
A few of them are listed below with their functionality:. Examples of Notation for Binary Fields. A control field 2 bits long would be represented as 0.
SORT control statement
The first 4 bytes contain the record descriptor word. Signed numeric with trailing separate sign. It is usually used to create empty dataset or delete an existing dataset. Unicode Transformation Utiloty, a 16 bit encoding form.
Using the ICETOOL utility
The options available on the SORT statement can be specified in other sources as well. Input and output datasets can be defined using user defined DD names. You can use an E15 or E61 user exit to do this during processing.
Requires four facts about each control field in the input records: Used to return control to user and terminate. Signed numeric with leading separate sign. Signed free form numeric. The text that follows gives specifications in detail. Then, specify the bit location relative to the beginning of that byte. Usually used to manage VSAM datasets. The maximum length of the collected control fields for which Blockset can be used is bytes.
A SORT statement can also be used to specify a copy application. Character or zoned x Lower dfeort years for dfsorg, 19yyupper century years for example, 20yy. Signed numeric with trailing overpunch sign. User labels will not be copied to the output data sets. The cultural environment is established by selecting the active locale. First, specify the byte location relative to the beginning of the record and follow it with a period.
Two-digit character or zoned-decimal year data with special indicators. Other examples of this notation are shown in Figure The cultural environment is established by selecting the active collation version. Character or zoned yyx See Data format descriptions for detailed format descriptions. Create, delete, rename, catalog, uncatalog utipity other than PDS.
PD nines, upper century dates for example, 20yylower century dates for example, 19yyPD zeros.
SORT control statement
The total number of bytes occupied by all control fields must not exceed or, when the EQUALS option is in operation, bytes. BI ones, upper century years for example, 20yylower century years for example, 19yyblanks, BI zeros. Packed decimal yyxx and yyxxxx full date format with special indicators. The program examines the major control field first, and it must be specified first.
Packed decimal xyy and xxxyy full date format with special indicators. DFSORT produces sorted records for output according to the collating version rules defined in the active collation version.
The active collation version rules affects SORT processing as follows: Unicode Transformation Format, a 32 bit encoding form. For example, a file containing names of employees can be split into 26 files, each containing the names starting with A, B, C and so on. Specify E if you include an E61 user exit to modify control fields before the program sorts them. The first byte of a floating-point field is interpreted as a signed exponent; the rest of the field is interpreted as the fraction.