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db.dropcolumn(1) GRASS GIS User's Manual db.dropcolumn(1) NAME db.dropcolumn - Drops a column from selected attribute table. KEYWORDS database, attribute table SYNOPSIS db.dropcolumn db.dropcolumn --help db.dropcolumn [-f] table=name column=name [--help] [--verbose] [--quiet] [--ui] Flags: -f Force removal (required for actual deletion of files) --help Print usage summary --verbose Verbose module output --quiet Quiet module output --ui Force launching GUI dialog Parameters: table=nameA [required] Name of attribute table column=nameA [required] Name of attribute column DESCRIPTION db.dropcolumn drops a column from an attribute table. If the -f force flag is not given then nothing is removed, instead a preview of the ac- tion to be taken is printed. NOTES db.dropcolumn is a front-end to db.execute to allow easier usage with a special workaround for the SQLite driver to support column drop also for SQLite tables. EXAMPLE Dropping a column (North Carolina sample dataset): # work on own copy g.copy vect=roadsmajor,myroads db.describe -c myroads # only shows what would happen: db.dropcolumn myroads column=SHAPE_LEN # actually drops the column db.dropcolumn -f myroads column=SHAPE_LEN db.describe -c myroads SEE ALSO db.describe, db.droptable, db.execute, v.db.dropcolumn, GRASS SQL in- terface AUTHOR Markus Neteler SOURCE CODE Available at: db.dropcolumn source code (history) Main index | Database index | Topics index | Keywords index | Graphical index | Full index A(C) 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual GRASS 7.8.5 db.dropcolumn(1)
NAME | KEYWORDS | SYNOPSIS | DESCRIPTION | NOTES | EXAMPLE | SEE ALSO | AUTHOR | SOURCE CODE
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