android - rawquery 中的错误：near ","

Question

尝试插入数据时出现此错误

07-29 18:15:19.909: E/sqlite(863): android.database.sqlite.SQLiteException: near ",": syntax error: , while compiling: INSERT INTO transactions (details , amount) VALUES( , );

我认为错误在这一行中，无法对其进行排序对任何人都有帮助

String insertQuery = "INSERT INTO " +stdb.tname+" (" + stdb.details+" , "+stdb.amt+") VALUES("+setdet+" , "+setamt+");";

Answer 1

看起来像setdet并且setamt是空的。这导致无效的声明：

INSERT INTO transactions (details , amount) VALUES( , );