我有一个 SQL 命令,它为空间数据创建一个带有 GEOGRAPHY 类型列的表,该列用于存储纬度/经度对(一个点)。如何为该列设置默认值?例如,(0,0) 处的点?
CREATE TABLE [dbo].[StationLocations] (
[Id] [int] NOT NULL,
[StationId] [int] NOT NULL,
[Position] [Geography],
CONSTRAINT [PKStationLocations] PRIMARY KEY CLUSTERED ([Id]))
最佳答案
试试这个:
CREATE TABLE #TEMP(ID INT,COL1 GEOGRAPHY DEFAULT(CONVERT(GEOGRAPHY,'POINT (0 0)')))
INSERT INTO #TEMP (ID) VALUES(1)
SELECT * FROM #TEMP
ID COL1
1 0xE6100000010C00000000000000000000000000000000
SELECT ID,CONVERT(VARCHAR,COL1) AS DEF_VALUE FROM #TEMP
ID DEF_VALUE
1 POINT (0 0)
就你的情况
CREATE TABLE [dbo].[StationLocations] (
[Id] [int] NOT NULL,
[StationId] [int] NOT NULL,
[Position] [Geography] DEFAULT(CONVERT(GEOGRAPHY,'POINT (0 0)')),
CONSTRAINT [PKStationLocations] PRIMARY KEY CLUSTERED ([Id]))
关于sql - 如何将某个点设置为地理列的默认值?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24798477/