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<meta name="DC.Title" content="Specify database file and member attributes" />
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<meta name="abstract" content="When you create a database file, database attributes are stored with the file and members. You specify attributes with database command parameters." />
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<title>Specify database file and member attributes</title>
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<body id="rbafocrtatt"><a name="rbafocrtatt"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Specify database file and member attributes</h1>
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<div><p>When you create a database file, database attributes are stored
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with the file and members. You specify attributes with database command parameters. </p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rbafonoid07.htm">Specify file name and member name (FILE and MBR) parameters</a></strong><br />
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When you create a database file, you can name the file and the member with the FILE and MBR parameters.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid08.htm">Specify the physical file member control (DTAMBRS) parameter</a></strong><br />
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You can control the reading of the physical file members with the DTAMBRS parameter on the Create Logical File (CRTLF) command.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid09.htm">Specify the source file and source member (SRCFILE and SRCMBR) parameters</a></strong><br />
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You can use the SRCFILE and SRCMBR parameters to specify the names of the source file and members that contain the DDS statements.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid10.htm">Specify the database file type (FILETYPE) parameter</a></strong><br />
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You can specify the type of a database file with the FILETYPE parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid11.htm">Specify the maximum number of members allowed (MAXMBRS) parameter</a></strong><br />
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You can specify the maximum number of members that the file can hold with the MAXMBRS parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafodatal.htm">Specify where to store the data (UNIT) parameter</a></strong><br />
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The system finds a place for the file on auxiliary storage. You can specify where to store the file with the UNIT parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafocrtfrc.htm">Specify the frequency of writing data to auxiliary storage (FRCRATIO) parameter</a></strong><br />
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You can control when database changes are written to auxiliary storage using the force write ratio (FRCRATIO) parameter on the create, change, or override database file command.</li>
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<li class="ulchildlink"><strong><a href="rbafocrtfap.htm">Specify the frequency of writing the access path (FRCACCPTH) parameter</a></strong><br />
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You can specify the frequency of writing the access path with the force access path (FRCACCPTH) parameter. The FRCACCPTH parameter controls when an access path is written to auxiliary storage.</li>
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<li class="ulchildlink"><strong><a href="rbafocrtlvl.htm">Specify the check for record format description changes (LVLCHK) parameter</a></strong><br />
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When the file is opened, the system checks for changes to the database file definition. You can specify the check for record format description changes with the LVLCHK parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafoapcurr.htm">Specify the current access path maintenance (MAINT) parameter</a></strong><br />
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You can specify how access paths are maintained for closed files with the MAINT parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid18.htm">Specify the recover (RECOVER) parameter</a></strong><br />
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After a failure, you must rebuild changed access paths that were not forced to auxiliary storage or journaled with the RECOVER parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid20.htm">Specify the file sharing (SHARE) parameter</a></strong><br />
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The database system allows multiple users to access and change a file at the same time. You can specify the file sharing with the SHARE parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid21.htm">Specify the locked file or record wait time (WAITFILE and WAITRCD) parameters</a></strong><br />
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When you create a file, you can specify how long a program waits for either the file or a record in the file if another job has the file or record locked with the WAITFILE and WAITRCD parameters.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid22.htm">Specify the public authority (AUT) parameter</a></strong><br />
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Public authority is the authority a user has to a file (or other object on the system) if the user does not have specific authority for the file or does not belong to a group with specific authority for the file. When you create a file, you can specify public authority with the AUT parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid23.htm">Specify the system on which the file is created (SYSTEM) parameter</a></strong><br />
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You can specify the system on which the file is to be created with the SYSTEM parameter. You can specify if the file is to be created on the local system or a remote system that supports distributed data management (DDM).</li>
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<li class="ulchildlink"><strong><a href="rbafonoid24.htm">Specify the file and member text (TEXT) parameter</a></strong><br />
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You can specify a text description for each file and member you create with the TEXT parameter. The text data is useful in describing information about your file and members.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid25.htm">Specify the coded character set identifier (CCSID) parameter</a></strong><br />
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You can specify a coded character set identifier (CCSID) for physical files with the CCSID parameter. CCSID describes the encoding scheme and the character set for character type fields that are contained in a file.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid26.htm">Specify the sort sequence (SRTSEQ) parameter</a></strong><br />
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You can specify the sort sequence for a physical or logical file with the SRTSEQ parameter.</li>
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<li class="ulchildlink"><strong><a href="rbafonoid27.htm">Specify the language identifier (LANGID) parameter</a></strong><br />
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You can specify the language identifier that the system uses when the SRTSEQ parameter value is *LANGIDSHR or *LANGIDUNQ.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbafosetcom.htm" title="These topics introduce several methods for describing iSeries database files, with focus on how to describe database files using data description specifications (DDS) because DDS has the most options for defining data.">Describe database files</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="../rbam6/rbam6clmain.htm">Control language (CL)</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../cl/crtpf.htm">Create Physical File (CRTPF) command</a></div>
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<div><a href="../cl/crtlf.htm">Create Logical File (CRTLF) command</a></div>
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<div><a href="../cl/crtsrcpf.htm">Create Source Physical File (CRTSRCPF) command</a></div>
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<div><a href="../cl/addpfm.htm">Add Physical File Member (ADDPFM) command</a></div>
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<div><a href="../cl/addlfm.htm">Add Logical File Member (ADDLFM) command</a></div>
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<div><a href="../cl/chgpf.htm">Change Physical File (CHGPF) command</a></div>
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<div><a href="../cl/chgpfm.htm">Change Physical File Member (CHGPFM) command</a></div>
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<div><a href="../cl/chglf.htm">Change Logical File (CHGLF) command</a></div>
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<div><a href="../cl/chglfm.htm">Change Logical File Member (CHGLFM) command</a></div>
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<div><a href="../cl/chgsrcpf.htm">Change Source Physical File (CHGSRCPF) command</a></div>
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</div>
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</div>
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</body>
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</html>
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