我正在使用Datenwerke ReportServer。我試圖通過DJBC使用Caché來源。 Here is a blog post from them on adding additional databases。不幸的是,我並不完全理解它。我把JDBC文件放在正確的位置,併爲Caché創建了一個groovy腳本。問題與奇怪的Query Wrapper有關。我可以通過的ReportServer UI成功測試數據源,但是當我試圖執行一個簡單的查詢,我得到以下錯誤:Datenwerke ReportServer,添加自定義數據源時遇到問題(Caché)
Error
Query could not be prepared: Error preparing statement for executing the report query : SELECT * FROM (SELECT * FROM (SELECT TOP 10 * FROM HS_IHE_ATNA_Repository.Aggregation) wrappedQry) limitQry LIMIT 50 OFFSET 0 /* token: 6aab148a-927b-45d5-9dfd-724788e139ca / / currentuser: 3 */
cache.groovy
package databasehelper;
import net.datenwerke.rs.scripting.service.scripting.scriptservices.GlobalsWrapper;
import net.datenwerke.rs.base.service.dbhelper.DatabaseHelper
import net.datenwerke.rs.base.service.dbhelper.hooks.DatabaseHelperProviderHook
import net.datenwerke.rs.base.service.dbhelper.queries.Query
import net.datenwerke.rs.base.service.dbhelper.querybuilder.ColumnNamingService
import net.datenwerke.rs.base.service.dbhelper.querybuilder.QueryBuilder
class Cache extends DatabaseHelper {
public static final String DB_NAME = "Cache";
public static final String DB_DRIVER = "com.intersys.jdbc.CacheDriver";
public static final String DB_DESCRIPTOR = "DBHelper_Cache";
@Override
public String getDescriptor() {
return DB_DESCRIPTOR;
}
@Override
public String getDriver() {
return DB_DRIVER;
}
@Override
public String getName() {
return DB_NAME;
}
@Override
public String createDummyQuery() {
return 'SELECT * FROM HS_IHE_ATNA_Repository.Aggregation'
}
}
def HOOK_NAME = "DATASOURCE_HELPER_Cache"
def callback = [
provideDatabaseHelpers : {
return Collections.singletonList(new Cache());
}
] as DatabaseHelperProviderHook;
GLOBALS.services.callbackRegistry.attachHook(HOOK_NAME, DatabaseHelperProviderHook.class, callback)
似乎是一個鐵打在這裏張貼這一點,尤其是
可悲的是我提出的,但我很欣賞的職位,將在希望接受它可以幫助別人的未來:) –
@ ScottBeeson是的。這是希望。我明白問題提出後兩個月,你可能不需要答案:-) – adaptun