Detailed description of the SQL Statement object Statement in JSP to operate MySQL instance, statementmysql

Detailed description of the SQL Statement object Statement in JSP to operate MySQL instance, statementmysql

Statement object Statement contains two main methods: executeUpdate () method for data update operations (adding records, deleting records, and updating records), executeQuery () method used to query data (query records)

Add record

<% @ Page language = "java" contentType = "text/html; charset = gb2312" %> <% @ page import = "java. SQL. *" %> <! DOCTYPE html> 
Update record
<% @ Page language = "java" contentType = "text/html; charset = gb2312" %> <% @ page import = "java. SQL. *" %> <! DOCTYPE html> 
Delete record
<% @ Page language = "java" contentType = "text/html; charset = gb2312" %> <% @ page import = "java. SQL. *" %> <! DOCTYPE html> 

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