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Queries

Select and Display by Attribute

Go to main SCRIPTING page...

Learn how to use queries to manipulate your project materials (raster, vector, CAD, TIN, or databases) according to the geoattributes attached to their elements. Queries control which elements in a geodata layer are selected, and how they are displayed, printed in maps, or used in other analytical procedures. Begin with simple one-line expressions and progress towards longer, complex queries that evaluate geoattributes from multiple related tables and objects.

Since queries operate on specific objects and attributes, sample queries have limited use apart from the specific objects and attributes they were created to use. The samples provided here are designed to go along with the sample data indicated. Study the way these queries work, and then you will be able to adapt them for use with your own project materials.

Read the tutorial Building and Using Queries.

description	file/object	download .qry view text
label polygons with acres	cb_soils.rvc/CBSOILS	areaquery.qry .txt
		buffer1.qry .txt
elevation label on contour line	(any line elements)	contour_line_z_labels.qry .txt
		Conv_Vec_to_Raster_multi_Attached_rec.qry .txt
tabular report	cb_soils.rvc/CBSOILS	dbreport.qry .txt
		disp_labels_multi_line_area.qry .txt
		editlabels.qry .txt
		fill_poly_style.qry .txt
	cb_soils.rvc/CBSOILS	fill_poly_transp.qry .txt
		Fill_Polys_Script_w_StyleObject.qry .txt
fill one polygon	(any polygon elements)	fillcolr.qry .txt
3-field compound label		For_combining_String_Fields.qry .txt
		label.qry .txt
		linedir.qry .txt
	cb_soils.rvc/CBSOILS	Multi_Line_DataTip_One_Object.qry .txt
		point_l1.qry .txt
		point_la.qry .txt
point symbol by number	(any point elements)	Point_Symbols.qry .txt
sq.feet-to-acres for label	(any polygon elements)	Poly_Area_in_Acres_6.3_places.qry .txt
format numeric label	(any polygon elements)	Poly_Area_With_2_decimal_Places.qry .txt
3-line compound label		section_sect_twp_rge.qry .txt
		sel_polys_w_no_attribs_attached.qry .txt
	cb_soils.rvc/CBSOILS	StringRGBFillcolor.qry .txt
		tin.qry .txt
		tri_pt.qry .txt
elevation of contour line	(any line elements)	zqueryforlabelsintntdisp.qry .txt
elevation of contour line	(any line elements)	zval_decimal_places.qry .txt

25 March 2009
page update: 29 Oct 12

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