What is the main difference between Statement and PreparedStatement?
Table of Contents
- 1 What is the main difference between Statement and PreparedStatement?
- 2 What is the main difference between Statement and PreparedStatement and CallableStatement?
- 3 What is the difference between ResultSet and ResultSetMetaData?
- 4 What is the difference between Statement and PreparedStatement interface in Java?
- 5 What is Statement PreparedStatement CallableStatement?
- 6 What are the benefits of PreparedStatement over Statement?
- 7 What is statements in JDBC?
- 8 What is ResultSetMetaData in JDBC?
What is the main difference between Statement and PreparedStatement?
Difference between Statement and PreparedStatement :
| Statement | PreparedStatement |
|---|---|
| It is used when SQL query is to be executed only once. | It is used when SQL query is to be executed multiple times. |
| It is base interface. | It extends statement interface. |
| Used to execute normal SQL queries. | Used to execute dynamic SQL queries. |
What is the main difference between Statement and PreparedStatement and CallableStatement?
Difference between CallableStatement and PreparedStatement :
| CallableStatement | PreparedStatement |
|---|---|
| Used to execute functions. | Used for the queries which are to be executed multiple times. |
| Performance is very high. | Performance is better than Statement. |
| Used to call the stored procedures. | Used to execute dynamic SQL queries. |
What is Statement & ResultSet in JDBC?
The SELECT statement is the standard way to select rows from a database and view them in a result set. The java. ResultSet interface represents the result set of a database query. A ResultSet object maintains a cursor that points to the current row in the result set.
What is the difference between ResultSet and ResultSetMetaData?
ResultSetMetaData is an interface in java. sql package of JDBC API which is used to get the metadata about a ResultSet object. Whenever you query the database using SELECT statement, the result will be stored in a ResultSet object. Every ResultSet object is associated with one ResultSetMetaData object.
What is the difference between Statement and PreparedStatement interface in Java?
Statement is used for executing a static SQL statement in java JDBC. PreparedStatement is used for executing a precompiled SQL statement in java JDBC. sql. PreparedStatement can be executed repeatedly, it can accept different parameters at runtime in java JDBC.
Which is faster Statement or PreparedStatement?
Prepared statements are much faster when you have to run the same statement multiple times, with different data. Thats because SQL will validate the query only once, whereas if you just use a statement it will validate the query each time.
What is Statement PreparedStatement CallableStatement?
The Statement is used for executing a static SQL statement. The PreparedStatement is used for executing a precompiled SQL statement. The CallableStatement is an interface which is used to execute SQL stored procedures, cursors, and Functions.
What are the benefits of PreparedStatement over Statement?
Some of the benefits of PreparedStatement over Statement are:
- PreparedStatement helps us in preventing SQL injection attacks because it automatically escapes the special characters.
- PreparedStatement allows us to execute dynamic queries with parameter inputs.
Which of the following is correct about PreparedStatement?
Q 19 – Which of the following is correct about PreparedStatement? A – PreparedStatement allows mapping different requests with same prepared statement but different arguments to execute the same execution plan.
What is statements in JDBC?
The JDBC Statement, CallableStatement, and PreparedStatement interfaces define the methods and properties that enable you to send SQL or PL/SQL commands and receive data from your database. They also define methods that help bridge data type differences between Java and SQL data types used in a database.
What is ResultSetMetaData in JDBC?
The ResultSetMetaData provides information about the obtained ResultSet object like, the number of columns, names of the columns, datatypes of the columns, name of the table etc… Following are some methods of ResultSetMetaData class.
Which of the following is advantage of using PreparedStatement in Java?
Which of the following is advantage of using PreparedStatement in Java? Explanation: PreparedStatement in Java improves performance and also prevents from SQL injection. Whereas, java. sql.