sqlite插入表select*from

Question

我需要在我的Android应用中将数据从一个表移动到另一个表

我想使用以下sql:

insert into MYTABLE2 select id, STATUS risposta, DATETIME('now') data_ins from  MYTABLE 2

不幸的是,在表MYTABLE2中有一个_ID列AUTOINCREMENT.我能做什么？

谢谢.

编辑: 这是我的MYTABLE2,我希望用另一个表中的数据填充表格:

CREATE TABLE "ANSWERS" ("_id" INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL ,
"ID_QUESTION" INTEGER,"DATE_INS" DATETIME DEFAULT 
(CURRENT_DATE) , "ANSWER" INTEGER)

Answer 1

明确指定INSERT子句中的列名,

INSERT INTO destinationTable (risposta, data_ins)
SELECT STATUS risposta, DATETIME('now') data_ins 
FROM   sourceTable

Answer 2

您可以指定要插入的列。假设该_id列是autoincrement并且您正在插入其他两列，您可以得到如下所示的内容：

insert into MYTABLE2 (riposta, data_ins)
select STATUS risposta, DATETIME('now') data_ins from  MYTABLE 2

Answer 3

这可能会有所帮助，从一个表到另一个表的查询，它还将检查所选列 (id) 是否已存在于另一个表中。

SQLite 查询：

INSERT INTO MYTABLE2(id,data_ins ) 
SELECT id, data_ins FROM MYTABLE2
WHERE id NOT IN ( SELECT id FROM MYTABLE1)

安卓：

 String select_insert_query = "INSERT INTO " + TABLE_MYTABLE2
            + "( " + ID + "," + DATA_INS + ") SELECT "
            + ID + ","
            + DATA_INS + " FROM "
            + TABLE_MYTABLE2
            + " WHERE " + ID + " NOT IN (SELECT " + ID
            + " FROM " + TABLE_MYTABLE1 + ")";

    SQLiteDatabase db = this.getWritableDatabase();

    Cursor cursor = db.rawQuery(select_insert_query, null);
    cursor.close();