A logical file does not contain any data. It simply provides services such as indexing, data mapping, etc
Logical files do not contain data.
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A logical file determines how data records are selected and defined when read by an application program. A logical file can be a simple, multiple format, or join logical file.
A simple logical file contains one record format and has one file specified on the PFILE keyword. A multiple format logical file either contains more than one record format or has more than one file specified on the PFILE keyword. A join logical file contains one record format and has up to 256 files specified on the JFILE keyword.
ref
http://publib.boulder.ibm.com/infocenter/iadthelp/v7r0/index.jsp?topic=/com.ibm.etools.iseries.langref2.doc/rzakb/ldef.htm
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Logical files do not contain data.
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A logical file determines how data records are selected and defined when read by an application program. A logical file can be a simple, multiple format, or join logical file.
A simple logical file contains one record format and has one file specified on the PFILE keyword. A multiple format logical file either contains more than one record format or has more than one file specified on the PFILE keyword. A join logical file contains one record format and has up to 256 files specified on the JFILE keyword.
ref
http://publib.boulder.ibm.com/infocenter/iadthelp/v7r0/index.jsp?topic=/com.ibm.etools.iseries.langref2.doc/rzakb/ldef.htm
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Logical files may be specified as either nonjoin or join.
A nonjoin logical file processes each record individually from one or more
physical files. Join logical files however create a single record from the
selected fields from two or more physical files.
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