在SELECT語句中使用JOIN的幫助

我想加入TABLE_1和TABLE_2，我需要在我的HTML表格中使用這些字段中的每一個。我收到有關我的FROM子句的錯誤，但我相信還有更多錯誤。在SELECT語句中使用JOIN的幫助

      "SELECT " 
          + "TABLE_1.id, " 
          + "TABLE_1.date, " 
          + "TABLE_1.location, " 
          + "TABLE_1.name, " 
          + "TABLE_1.status " 
          + "TABLE_2.date, " 
          + "TABLE_2.location, " 
          + "TABLE_2.name, " 
          + "TABLE_2.type " 
         + "FROM SCHEMA_1.TABLE_1 JOIN SCHEMA_1.TABLE_2 " 
         + "WHERE TABLE_1.id = TABLE_2.id " 
         + "AND add_user = ?");

來源

2011-04-04 Dan

當您使用JOIN語句你需要根據實際情況加入它所以你使用ON myField1 = myField2。 WHERE用於過濾數據。 – JonH 2011-04-04 20:18:08

試試這個，而是：

     "SELECT " 
         + "TABLE_1.id, " 
         + "TABLE_1.date, " 
         + "TABLE_1.location, " 
         + "TABLE_1.name, " 
         + "TABLE_1.status " 
         + "TABLE_2.date, " 
         + "TABLE_2.location, " 
         + "TABLE_2.name, " 
         + "TABLE_2.type " 
        + "FROM " 
        + " SCHEMA_1.TABLE_1 JOIN SCHEMA_1.TABLE_2 " 
        + " ON TABLE_1.ID = TABLE_2.ID" 
        + "WHERE add_user = ?");

來源

2011-04-04 20:15:08 JosephStyons

更改WHERE TABLE_1.id = TABLE_2.id AND add_user = ?爲ON TABLE_1.id = TABLE_2.id WHERE add_user = ?

來源

2011-04-04 20:13:01 Lamak

由我愚蠢的錯誤，謝謝！自從我使用SQL以來，它一直是永恆的。 – Dan 2011-04-04 20:17:48

嗯，我在我的代碼中做了這個改變，而且我仍然收到錯誤：ORA-00923：FROM keyword not found where expected。這可能源於其他嗎？ – Dan 2011-04-04 20:31:36

由ON連接表不是哪裏

http://www.w3schools.com/sql/sql_join_inner.asp

來源

2011-04-04 20:14:24 Spooks

在SELECT語句中使用JOIN的幫助

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