Question

嗨我在我的sqlite数据库上尝试过这个命令，但它不会删除/删除我的数据库表，我的reference

Statement stmt = conn.createStatement();
String sqlCommand = "DROP TABLE 'myTable' ";

System.out.println("output : " + stmt.executeUpdate(sqlCommand));

//Output
output : 0

没有返回错误，所以我仍然无法自己弄清楚是什么让代码无效。

丢弃表格的代码

Connection c = null;
Statement stmt = null;
String sql;
c = openSqlite(c);         //method i create to setup sqlite database connection
stmt = c.createStatement();

try{
System.out.println("Deleting table in given database...");

String sqlCommand = "DROP TABLE 'myTable' ";

stmt.executeUpdate(sqlCommand);
System.out.println("Table  deleted in given database...");

stmt.close();
c.commit();
c.close();
}catch(SQLException se){
//Handle errors for JDBC
se.printStackTrace();
}

Answer 1

感谢MadProgrammer和其他人，实际上我很想把提交声明放在我的代码上..

Statement stmt = conn.createStatement();
String sqlCommand = "DROP TABLE IF EXISTS 'myDatabase.myTable' ";

System.out.println("output : " + stmt.executeUpdate(sqlCommand));

stmt.close();
conn.commit();     // commit after execute sql command
                //COMMIT TRANSACTION makes all data modifications performed since 
                //the start of the transaction a permanent part of the database, 
conn.close();

在Java中，如何删除Sqlite表

1 个答案: