Using Ant Build Scripts to Drop Mysql Table

This example illustrates how to drop table through the build.xml file by simply running the ant command. In this build.xml file, we are using 4 property elements for connectivity of database. The first property <property name="sql.driver"> is used to connect the sql driver. The second property <property name="sql.url"> is used to define the database url and database name. The third property <property name="sql.user"> is used to define user name of the database. The fourth property <property name="sql.pass"> is used to define the password name of the database.

In this build.xml file, <target name="createTables"> is used to execute the query which is in the client.sql and project.sql file and <target name"dropTables"> is used to execute the query which is in the deleteclient.sql and deleteproject.sql file. In the target <target name="dropTable">, a condition is used - whether the user wants to delete the file or not. If the user gives input 'n', then the table can't be deleted but if the user give input 'y', then the table will be completely deleted. The source code of the build.xml file is as follows:

<project name="MysqlCreateTable" basedir="." default="dropTables">

  <property name="sql.driver" value="org.gjt.mm.mysql.Driver"/>
  <property name="sql.url" value="jdbc:mysql://192.168.10.211/test"/>
  <property name="sql.user" value="sandeep"/>
  <property name="sql.pass" value="sandeep"/>

  <target name="createTables" >
  <sql driver="${sql.driver}" url="${sql.url}" userid="${sql.user}" password="${sql.pass}" >
  <transaction src="client.sql"/>
  <transaction src="project.sql"/>
  </sql>
  </target>

  <target name="dropTables" depends="createTables">
  <input message="Are you sure to delete the table?" validargs="y,n" addproperty="do.delete" />
  <condition property="do.abort">
  <equals arg1="n" arg2="${do.delete}"/>
  </condition>
  <fail if="do.abort">Build aborted by user.</fail>
  <sql driver="${sql.driver}" url="${sql.url}" userid="${sql.user}" password="${sql.pass}" >
  <transaction src="deleteclient.sql"/>
  <transaction src="deleteproject.sql"/>
  </sql>
</target>

</project>

client.sql

create table client (
client_id int not null auto_increment primary key,
client_name text not null
);

project.sql

create table project (
project_id int not null auto_increment primary key,
project_name text not null
);

deleteclient.sql

drop table client;

deleteproject.sql

drop table project;

Create the all client.sql, project.sql, deleteclient.sql, deleteproject.sql files parallel of the build.xml file and simply run the build.xml file with ant command in the appropriate path on command prompt. If the program executes successfully, then the following output will be displayed.

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Using Ant Build Scripts to Drop Mysql Table

Using Ant Build Scripts to Drop Mysql Table

Using Ant Build Scripts to Drop Mysql Table

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