Statement 和 CallableStatement 的区别

一、声明：
它用于访问您的数据库。 Statement 接口不能接受参数，当您在运行时使用静态 SQL 语句时很有用。如果您只想运行 SQL 查询一次，则此接口优于 PreparedStatement。

例子 –

//Creating The Statement Object  
Statement GFG = con.createStatement();
  
//Executing The Statement  
GFG.executeUpdate("CREATE TABLE STUDENT(ID NUMBER NOT NULL, NAME VARCHAR)"); 

2. 可调用语句：
当您要使用数据库存储过程时使用它。 CallableStatement 可以接受运行时输入参数。

例子 –

//Creating CallableStatement object 
CallableStatement GFG = con.prepareCall("{call anyProcedure(?, ?, ?)}");
 
//Use GFG.setter() methods to pass IN parameters
 
//Use GFG.registerOutParameter() method to register OUT parameters
 
//Executing the CallableStatement
 GFG.execute();
 
//Use GFG.getter() methods to retrieve the result 

Statement 和 CallableStatement 的区别：

Statement	CallableStatement
It is used when SQL query is to be executed only once.	It is used when the stored procedures are to be executed.
You can’t pass the parameters at runtime.	You can pass the parameters at runtime.
Used for CREATE, ALTER, DROP statements.	Used to execute functions.
Performance is very low.	Performance is better than Statement.
Used to execute normal SQL queries.	Used to call the stored procedures.
It is base interface.	It extends PreparedStatement interface.
It is used for DDL statements.	It is used for stored procedures.
We can not used statement for reading binary data..	We can used CallableStatement for reading binary data..