Given the following tables:
Given the following tables:
Code:
CREATE TABLE #USGS_24K_TOPOMAP_BOUNDARIES(
[OBJECTID] [int] NOT NULL,
[AREA] [numeric](38, 8) NULL,
[PERIMETER] [numeric](38, 8) NULL,
[QD24K_GRSM] [numeric](38, 8) NULL,
[QD24K_GR_1] [numeric](38, 8) NULL,
[QUADID] [numeric](38, 8) NULL,
[CENTLAT] [numeric](38, 8) NULL,
[CENTLONG] [numeric](38, 8) NULL,
[NAME] [nvarchar](35) NULL,
[STATE] [nvarchar](2) NULL,
[LATLONG] [nvarchar](9) NULL,
[OHIO_INDEX] [nvarchar](8) NULL,
[GRID60] [nvarchar](5) NULL,
[Reviewed] [int] NULL,
[Corrected] [int] NULL,
[Verified] [int] NULL,
[GlobalID] [uniqueidentifier] NOT NULL,
[SHAPE] [geometry] NULL)
and
Code:
CREATE TABLE #tbl_locations(
[OBJECTID] [int] NOT NULL,
[FCategory] [varchar](16) NULL,
[MapMethod] [varchar](4) NULL,
[HError] [varchar](50) NULL,
[MapSource] [varchar](255) NULL,
[SourceDate] [datetime2](7) NULL,
[EditDate] [datetime2](7) NULL,
[Notes] [varchar](255) NULL,
[Species_Community] [varchar](50) NULL,
[Location_ID] [uniqueidentifier] NOT NULL,
[Site_ID] [uniqueidentifier] NULL,
[GIS_Location_ID] [varchar](50) NULL,
[Meta_MID] [varchar](50) NULL,
[X_Coord] [numeric](38, 8) NULL,
[Y_Coord] [numeric](38, 8) NULL,
[Coord_Units] [varchar](50) NULL,
[Coord_System] [varchar](50) NULL,
[UTM_Zone] [varchar](50) NULL,
[Accuracy_Notes] [varchar](255) NULL,
[Unit_Code] [varchar](12) NULL,
[Loc_Name] [varchar](100) NULL,
[Loc_Type] [varchar](25) NULL,
[Updated_Date] [varchar](50) NULL,
[Loc_Notes] [varchar](255) NULL,
[Datum] [varchar](5) NULL,
[Watershed] [varchar](50) NULL,
[StreamName] [varchar](50) NULL,
[NHDReachCode] [varchar](14) NULL,
[TOPO_NAME] [varchar](50) NULL,
[Trail] [varchar](100) NULL, [Road]
[varchar](50) NULL, [Elevation] [numeric](38, 8) NULL,
[LAT] [numeric](38, 8) NULL,
[LON] [numeric](38, 8) NULL,
[Population_ID] [uniqueidentifier] NULL,
[Year_] [varchar](4) NULL,
[WGS_DAT] [varchar](5) NULL,
[WGS_CS] [varchar](5) NULL,
[County] [varchar](20) NULL,
[State] [varchar](15) NULL,
[IsExtant] [varchar](3) NULL,
[IsSenstive] [varchar](3) NULL,
[SpeciesName] [varchar](125) NULL,
[SpeciesID] [varchar](50) NULL,
[Species_ID] [int] NULL,
[SHAPE] [geometry] NULL)
I'd like to populate #tbl_locations.Topo_Name with #USGS_24K_TOPOMAP_BOUNDARIES.Name. In other words, I trying to determine the name of the topo map that a point falls within, and programatically write that to the points table. Seems simple in theory, but tbl_locations contains thousands of points which could occur in one of 36 topo map polygon boundaries.
I've gotten this far
Code:
Select NAME, Loc_Name, Location_ID From #USGS_24K_TOPOMAP_BOUNDARIES a,
#TBL_LOCATIONS b where a.Shape.STContains(b.Shape)=1
which returns a neat table that I can cross-walk back to tbl_locations through a join, but I'm stuck on getting this accomplished through a single query-update statement, and I have many similar point-polygon relationships that I'd like to automate this way (e.g what watershed, county, state, etc... the point occurs in). THanks!
dBforums
>
Can STWithin or STContains be used to update columns based on point within polygon re
02-11-12, 13:18
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