File Management - IBM

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160 File Management V4R5 You can use the reader functions to read an input stream from diskette or database files. Figure 16 shows the typical organization of an input stream: One or more INLINE DATA FILES (Optional) Batch Job Input Figure 16. Typical Organization of an Input Stream The job queue on which the job is placed is specified on the JOBQ parameter on the BCHJOB command, on the start reader command, or in the job description. If the JOBQ parameter on the BCHJOB command is: v *RDR: The job queue is selected from the JOBQ parameter on the start reader command. v *JOBD: The job queue is selected from the JOBQ parameter in the job description. v A specific job queue: The specified queue is used. For jobs with small input streams, you may improve system performance by not using input spooling. The submit job commands (SBMDBJOB and SBMDKTJOB) read the input stream and place the job on the job queue in the appropriate subsystem, bypassing the spooling subsystem and reader operations. If your job requires a large input stream to be read, you should use input spooling (STRDKTRDR or STRDBRDR command) to allow the job to be input independent of when the job is actually processed. Summary of job input commands Input Stream RSLH116-2 The following commands may be used when submitting jobs to the system. The start reader commands may be used for spooling job input; the submit job commands do not use spooling. For detailed descriptions of these commands, see the CL Reference. BCHJOB Batch Job: Marks the start of a job in a batch input stream and defines the operating characteristics of the job. DATA Data: Marks the start of an inline data file.
Job queues ENDBCHJOB End Batch Job: Marks the end of a job in a batch input stream. ENDINP End Input: Marks the end of the batch input stream. SBMDBJOB Submit Database Jobs: Reads an input stream from a database file and places the jobs in the input stream on the appropriate job queues. SBMDKTJOB Submit Diskette Jobs: Reads an input stream from diskette and places the jobs in the input stream on the appropriate job queues. STRDBRDR Start Database Reader: Starts a reader to read an input stream from a database file and places the job in the input stream on the appropriate job queue. STRDKTRDR Start Diskette Reader: Starts a reader to read an input stream from diskette and places the job in the input stream on the appropriate job queue. A job queue is an ordered list of jobs waiting to be processed by a particular subsystem. Jobs will not be selected from a job queue by a subsystem unless the subsystem is active and the job queue is not held. You can use job queues to control the order in which jobs are run. A base set of job queues is provided with your system. In addition, you may create additional job queues that you need. IBM-supplied job queues Several job queues are provided by IBM when your system is shipped. IBM supplies job queues for each IBM-supplied subsystem. QCTL Controlling subsystem queue QBASE QBASE subsystem job queue QBATCH Batch subsystem queue QINTER Interactive subsystem queue QPGMR Programmer subsystem queue QSPL Spooling subsystem queue QSYSSBSD QSYSSBSD subsystem job queue QS36MRT QS36MRT job queue QS36EVOKE QS36EVOKE job queue Chapter 5. Working with spooled files 161
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AS/400e File Management Version 4
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© Copyright International Business
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| | | | | Special considerations fo
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vi File Management V4R5
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viii File Management V4R5
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2 File Management V4R5 v Distribute
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Table 1. File Types and Their Main
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Table 2. High-Level Languages and T
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| | Table 3. High-Level Languages a
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Add Add new records to the file. Up
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| Sharing files 12 File Management
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14 File Management V4R5 For example
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16 File Management V4R5 File resour
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18 File Management V4R5 v “Displa
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Application 1 Application 2 Applica
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22 File Management V4R5 LVLCHK(*NO)
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The open feedback area also contain
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26 File Management V4R5 Table 6. OS
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28 File Management V4R5 Table 7. Ma
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30 File Management V4R5 Depending o
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32 File Management V4R5
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34 File Management V4R5 Handling ov
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36 File Management V4R5 output queu
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38 File Management V4R5 The followi
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40 File Management V4R5 application
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42 File Management V4R5 activation
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Program A (in user default activati
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46 File Management V4R5 Override 1
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48 File Management V4R5 same call l
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50 File Management V4R5 Program A .
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52 File Management V4R5 Applying OV
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Deleting overrides 54 File Manageme
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Program A (in user default activati
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58 File Management V4R5 Displaying
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60 File Management V4R5 Command 7 d
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62 File Management V4R5 Display All
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Redirecting files 64 File Managemen
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66 File Management V4R5 Default act
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68 File Management V4R5 From Databa
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Copying files: overview 70 File Man
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72 File Management V4R5 Table 9. Co
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Table 10. Summary of Copy Functions
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76 File Management V4R5 Copying fil
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Resending copy file completion mess
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80 File Management V4R5 from-file m
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CPYSRCF command support for CCSIDs
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90 File Management V4R5 Copying onl
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Selecting the records to copy 92 Fi
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94 File Management V4R5 Selecting r
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96 File Management V4R5 Example: bu
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98 File Management V4R5 When you sp
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100 File Management V4R5 A field na
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102 File Management V4R5 v “Null-
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104 File Management V4R5 - INCCHAR(
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When you specify PRINT(*EXCLD), the
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Note: It is possible for files with
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Page 132 and 133: Preventing errors when copying file
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Page 146 and 147: | | | | | | | | | | AS/400 supports
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Page 150 and 151: Using the Copy From Import File (CP
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210 File Management V4R5 When you c
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DBCS font tables 212 File Managemen
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214 File Management V4R5 CPYIGCTBLI
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DBCS font files DBCS sort tables 21
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Finding out if a DBCS sort table ex
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220 File Management V4R5 v When you
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User-created dictionary for DBCS 22
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Work with DBCS conversion dictionar
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another alphanumeric entry in the e
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Figure 22. Display Produced by the
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230 File Management V4R5 1. Positio
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Figure 23. Example Screen 1 Positio
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Figure 27. Example Screen 5 234 Fil
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236 File Management V4R5 - If you t
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contains information on data descri
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240 File Management V4R5
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CHGWTR (Change Writer) command 157
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command, CL 160, 212 (continued) Tr
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DBCS conversion dictionary (continu
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file object authority 8 file proces
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output queue (continued) changing 1
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estriction DBCS files 206 deleting
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WRKOUTQD (Work with Output Queue De
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