由于我不能在这里发表评论:
How do I delete column from sqlite table in android?
db.execsql("CREATE TEMPORARY TABLE Evaluation_backup(" + allColumnName + ");" + "INSERT INTO Evaluation_backup SELECT " + allColumnName + " FROM Evaluation;" + "DROP TABLE Evaluation;" + "CREATE TABLE Evaluation("+ allColumnName + ");" + "INSERT INTO Evaluation SELECT " + allColumnName + " FROM Evaluation_backup;" + "DROP TABLE Evaluation_backup;");
allColumnName是String包含除了要删除的列名称之外的所有列名. allColumnName内容如下:column1,column2,column3.
提前致谢.