Question

feature2D.fieldValues[9];   sql  查询 如何根据字段名称查询

Answer 1

您好，sql查询是二维范畴，所以手册要看iClent For JavaScript.在线范例也可以参考：

http://www.supermap.com:8090/iserver/iClient/forJavaScript/examples/getFeatureBySQL.html

Comments

能根据字段名称查询吗？

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当然是可以的哈。

得把您的数据发数据服务。

function getFeaturesBySQL() {
	vectorLayer.removeAllFeatures();
	var getFeatureParam, getFeatureBySQLService, getFeatureBySQLParams;
	getFeatureParam = new SuperMap.REST.FilterParameter({
	name: "Countries@World",
	attributeFilter: "SMID = 247"
	});
	getFeatureBySQLParams = new SuperMap.REST.GetFeaturesBySQLParameters({
	queryParameter: getFeatureParam,
	datasetNames:["World:Countries"]
	});
	getFeatureBySQLService = new SuperMap.REST.GetFeaturesBySQLService(url2, {
	eventListeners: {"processCompleted": processCompleted, "processFailed": processFailed}});
	getFeatureBySQLService.processAsync(getFeatureBySQLParams);
	}

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"SMID = 247"就是字段拉。