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DUMP (D) functiion

The DUMP function prints data sets or portions of data sets in character and vertical hexadecimal format. It also displays record number, record length, RBA address (VSAM) or RRN (VSAM RRDS and BDAM), block size, and physical location (disk files). SYSLIST DUMP Request Output is an example of the output produced by the DUMP function. DUMP output is presented 100 characters at a time, on four lines (CHAR, ZONE, NUMR and scale). A column scale is printed under each 100 characters to help you locate data. The column scale print is controlled by the FORM parameter.

Use parameters to control the number, or selection, of records to print. When no limiting parameters are specified, an installation default maximum of 250 records are dumped. This default prevents you from accidentally generating a large volume of print. Use the OUT=n parameter to override the default. Use the MOVE parameter to print only selected portions of each record.

Example 1:

$$DD01 DUMP OUT=5

Example 1 prints the first five records from the input dataset in a format that shows both the character and hexadecimal data. This application of DUMP is useful for packed and other nonprintable data.

Example 2:

$$DD01 DUMP REPL=(110,EQ,P’50’,P’200’),OUT=25

Example 2 prints the first 25 records containing a packed value of 50 in location 110. The print shows the replacement of the value 50 with the value 200 without actually changing the input data. Using the DUMP function instead of the UPDATE function lets you see your changes before you apply them.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*

BMC Compuware File-AID/MVS 21.01