56 lines
1.2 KiB
Groff
56 lines
1.2 KiB
Groff
.TH datatype "" "" "/rdb Command"
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.PC "Display the data type of each column selected"
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\fBdatatype [ \-l ] [ \fIcolumn ... \fB] < \fItable\fR
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.PP
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.II "data type"
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.II "type of data"
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The command
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.B datatype
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displays the type of data contained in each
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.IR column .
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If you do not name a
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.I column
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on the command line,
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.B datatype
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calculates and displays all of
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.IR table 's
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columns.
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.SH Options
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The \fB\-l\fR option tells
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.B datatype
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to print the entire contents of
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.IR table ,
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in addition to information about each
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.IR column .
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.SH Code
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.IP \fB\-1\fR
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Character strings with nonnumeric data.
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.IP \fB0\fR
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Integer number.
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.IP \fB1,2...\fR
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Floating-point number (number of digits to the right of the decimal).
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.SH Example
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The following shows a sample output of
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.BR datatype :
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.DM
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Int Char Float2 Float4
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--- ---- ------ ------
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1 a 1.2 1.1234
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745 zzzz 8.54 12.3
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--- ---- ------ ------
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0 -1 2 4
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.DE
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.PP
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Note that the
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.I Int
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column has only integers in it (code 0), the
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.I Char
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column has characters in it (code -1), and the two
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.I Float
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columns have different precisions (positive numbers codes).
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Note that the float precision is the maximum.
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.SH "See Also"
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.B
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ascii, chr, dbdict
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.R
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