by Dinesh Thakur Category: Servlet with MySql Database

Below Figure is a representative sketch of the JDBC architecture. This can be used in Java applications,applets, servlets or any other program where Java codes used. Java codes only interact with theJDBC Application-Program Interface (API). The JDBC API is a simple SQL-Level interface,which allows execution of SQL statements through Java.



 
by Dinesh Thakur Category: Servlet with MySql Database

The query 'Reverse' will reverse all the selected content or String(Column).

 
by Dinesh Thakur Category: Servlet with MySql Database

Servlets are the server-side components that enhance the capability of Java-enabled servers and allow a variety of network-based services. For example, servlets with the database communication can facilitate solutions for distributed applications.



 
by Dinesh Thakur Category: Servlet with MySql Database

JDBC defines an API designed to support basic SQL functionality independent of any specific SQL implementation. This means the focus is on executing SQL statements and retrieving their results.



 
by Dinesh Thakur Category: Servlet with MySql Database

This function 'Like' (R%) will found the desired Criteria according to Condition.

In order to select rows that match a particular character pattern we use the LIKE operator. This character matching operation is called as wildcard search. The following symbols are used for matching the pattern % (percentage). This symbol represents any sequence of zero or more characters. _ (underscore) this symbol is used for any single character search. The % and _ symbols can be used in any combination with literal characters.

 
by Dinesh Thakur Category: Servlet with MySql Database

When a database is updated with each Statement object, by default, it will automatically commit the changes (permanently) to the database immediately. In general, to complete a transaction, it is required that one or more statements be executed. Thus, there are situations where a commit statement is needed after execution of more than one statement. In Java, the Connection object performs transaction control. The Connection object provides a method setAutoCommit (boolean value) to specify whether a transaction (or a set of transactions) should commit automatically or manually. By default, it is set to auto-commit mode. The syntax for this is the following:



 
by Dinesh Thakur Category: Servlet with MySql Database

In order to see the data from the table the most common type of SQL statement executed in most database environments is the query, or SELECT statement. Select statements retrieval requests data from tables in a database. You can issue a simple SELECT statement that is designed to retrieve all data from the table.



 
by Dinesh Thakur Category: Servlet with MySql Database

The JDBC specification related API in the form of java.sql package.



 
by Dinesh Thakur Category: Servlet with MySql Database

This Function 'Date_Diff' will subtract the Two Dates.

 
by Dinesh Thakur Category: Servlet with MySql Database

The Function 'DATE_FORMAT' will use to see the format of the date.

 

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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.



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