# keep single quotes: db.connect driver=dbf database='$GISDBASE/$LOCATION_NAME/$MAPSET/dbf/' db.connect -p
If a DBF table has to be created manually, db.execute can be used or a spreadsheet application. Also db.copy is sometimes useful as well as db.in.ogr to import external tables.
ALTER TABLE table ADD [COLUMN] columndef ALTER TABLE table DROP COLUMN colname CREATE TABLE table ( columndefs ) DROP TABLE table SELECT columns FROM table SELECT columns FROM table WHERE condition DELETE FROM table DELETE FROM table WHERE condition INSERT INTO table VALUES (value1[,value2,...]) INSERT INTO table ( column1[,column2,...] ) VALUES (value1[,value2,...]) UPDATE table SET assignment1[,assignment2,...] UPDATE table SET assignment1[,assignment2,...] WHERE condition
"=" : equal "<" : smaller than "<=" : smaller/equal than ">" : larger than ">=" : larger/equal than "<>" : not equal "~" : Substring matching (non-standard SQL) "%" : Substring matching (limited functionality)
Arithmetic expressions using constants and field values are allowed in condition clauses and in the RHS of assignments. Usual precedence rules and bracketing (using '(' and ')') are supported. Type conversion is performed if necessary (experimental).
Aggregate functions (sum, count, min, max,...) are NOT currently supported in SELECT clauses.
Mathematic functions (sin, cos, exp, log,...) are NOT currently supported in expressions.
Conditions allow boolean expressions using the AND, OR and NOT operators, with the usual precedence rules.
NULLs can be tested by 'colname IS NULL' in conditions. The negation is 'colname NOT NULL'.
DBMI-DBF driver error: SQL parser error: syntax error, unexpected DESC, expecting NAME processing 'DESC'
Last changed: $Date: 2007-07-18 07:10:27 -0700 (Wed, 18 Jul 2007) $