Android SQLite查询报错

在运行查询语句时，报错语法错误：

inal Cursor c = getContentResolver().query(
Provider.GAME_URI, new String[]{"CASE WHEN " +DBHelper.COLUMN_CRE_USER + " = " + preferences.getInt(LoginScreen.ID, 0) + " THEN (" + DBHelper.COLUMN_CRE_PTS + " AS you AND " + DBHelper.COLUMN_CON_PTS + " AS them) ELSE (" + DBHelper.COLUMN_CON_PTS + " AS you AND " + DBHelper.COLUMN_CRE_PTS + " AS them)"},"turn = ?",
new String[] { preferences.getInt(LoginScreen.ID, 0) + ""}, null);

报的错：

04-24 19:57:48.345: E/AndroidRuntime(18775): Caused by: android.database.sqlite.SQLiteException: near "AS": syntax error (code 1): , while compiling: SELECT CASE WHEN createduser = 112 THEN (createdplayerpts AS you AND connectedplayerpts AS them) ELSE (connectedplayerpts AS you AND createdplayerpts AS them) FROM game WHERE (turn = ?)

类似这种SQL语法错误可以把你的语句先放到sql工具中执行下，首先确保sql语句本身没错，再检查你的代码有没有笔误，类似缺少逗号，括号不匹配这些。

SELECT 
    CASE WHEN createduser = 112 THEN createdplayerpts ELSE connectedplayerpts END AS you,
    CASE WHEN createduser = 112 THEN connectedplayerpts ELSE createdplayerpts END AS them
FROM 
    game WHERE (turn = ?)