工会工作不空的结果

-2

我尝试使用内部连接和工会工作不工会工作不空的结果

sql="SELECT * FROM " + 
     "(SELECT order_id, order_date, order_status, order_value, order_sapId, order_from, order_clientAcct, order_error, order_visitId, order_cancelled, distributor_name " + 
     " FROM `orders` " + 
     " JOIN visits on visit_id = order_visitId " + 
     " JOIN Name ON user_id = visit_userId " + 
     " JOIN distributor ON distributor_id = visit_outlet_id " + 
     " WHERE order_from = 'CSFA' AND user_id = '"+ App.getUserData("user_id")+"' " + 
     ")" + 
     " JOIN " + 
     "(SELECT order_id, order_date, order_status, order_value, order_sapId, order_from, order_clientAcct, order_error, order_visitId, order_cancelled, distributor_name " + 
     " FROM `orders` " + 
     " JOIN distributor ON order_clientAcct = distributor_accountName " + 
     " JOIN user ON salesEmpNo = user_sapId " + 
     " WHERE order_from = 'u' AND user_id = '"+ App.getUserData("user_id")+"' " + 
     ") " + 
     "" + 
     "ORDER BY order_id DESC LIMIT 100" + 
     "";

我需要一种方法来连接两个结果 1.尝试内部联接 2.tried工会

E/SQLiteLog：（1）near“（”：语法错误 11-24 19：53：01.017 13531-13531/E/AndroidRuntime：致命异常：主要进程：，PID：13531 android.database.sqlite.SQLiteException ：n ear“（”：syntax error（code 1）：，while compiling：SELECT * FROM（SELECT order_id，order_date，order_status，order_value，order_sapId，order_from，order_clientAcct，order_error，order_visitId，order_cancelled，distributor_name FROM orders JOIN visit visit_id = order_visitId JOIN名称ON user_id = visit_userId JOIN分销商ON distributor_id = visit_outlet_id WHERE order_from ='CSFA'AND user_id ='75'）UNION（SELECT order_id，order_date，order_status，order_value，order_sapId，order_from，order_clientAcct，order_error，order_visitId，order_cancelled，distributor_name FROM orders JOIN分配器ON order_clientAcct = distributor_accountName JOIN用户ON salesEmpNo = user_sapId WHERE order_from = 'u' 和USER_ID = '75'）ORDER BY ORDER_ID DESC LIMIT 100

这是错误日志

来源

2016-11-24 Edwin Bello

“不工作”照顾详细说明？错误讯息？ –

其sqlite检查语法附近（但工会之前， –

JOIN和UNION做* *完全不同*的东西。你不能简单地随机SQL关键字填入您的查询，并期望它的工作。你完全省略了你的目标的描述，你的查询应该如何实现它，样本数据和期望的结果。 –

经过几天的研究终于得到了答案。使用LEFT JOIN和OR仅从表中获取数据的位置匹配。


sql="" + 
     "SELECT DISTINCT order_id, order_date, order_status, order_value, order_sapId, order_from, order_clientAcct, order_error, order_visitId, order_cancelled, distributor_name " + 
     " FROM `orders` " + 
     " LEFT JOIN visits,user,distributor ON (visit_id = order_visitId AND user_id = visit_userId AND distributor_id = visit_outlet_id AND order_from = 'CSFA' AND user_id = '"+ App.getUserData("user_id")+"') OR " + 
     " " + 
     " (order_clientAcct = distributor_accountName AND salesEmpNo = user_sapId AND order_from = 'SAP' AND user_id = '"+ App.getUserData("user_id")+"')" + 
     " " + 
     "ORDER BY order_id DESC LIMIT 100" + 
     "";

来源

2016-11-28 04:20:39

工会工作不空的结果

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