由网友(沽酒杯空影)分享简介：我谨数据库创建Applcation.onCreate表SqliteHelper.onCreate。I move database create table from Applcation.onCreate to SqliteHelper.onCreate.在应用程序中，我必须检查表已经存在。但在SqliteHelp...

我谨数据库创建Applcation.onCreate表SqliteHelper.onCreate。

I move database create table from Applcation.onCreate to SqliteHelper.onCreate.

在应用程序中，我必须检查表已经存在。但在SqliteHelper，因为它呼吁建立数据库文件，我不认为这是nessasary使用IF NOT EXISTS

In Application, I must check if table already exists. But in SqliteHelper, as it's called on creation of database file, I don't think it's nessasary to use "IF NOT EXISTS"

CREATE TABLE {TABLE_NAME} IF NOT EXISTS (_id bla bla);

我可以改变这个SQL下？

Can I change this sql to below?

CREATE TABLE {TABLE_NAME} (_id bla bla)

编辑---------

EDIT ---------

我问，如果SqliteHelper.onCreate可以多次调用。

I asked if SqliteHelper.onCreate can called several times.

推荐答案

当然可以。但是，第一种方法是一直鼓励！

Yes you can. But the first method is always encouraged!