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How to create a table in navicat and run it with java

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Release: 2024-04-23 12:39:15
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Create a table through Navicat and run it through Java code: Create a table using Navicat: Connect to the database, right-click to create the table and define the structure. Run from Java code: import the JDBC library, establish the database connection, create the Statement object, execute the create table query, and finally close the connection.

How to create a table in navicat and run it with java

How to use Navicat to create a table and run it through Java code

Create a table using Navicat

Step 1: Connect to the database

  • Open Navicat, create a new connection and connect to the target database.

Step 2: Select the database

  • Select the database where you want to create the table in the navigation tree.

Step 3: Right-click to create a table

  • Right-click the database name and select "Create" > "Table".

Step 4: Define the table structure

  • In the "Table" window, specify the table name and column definitions.
  • For each column, specify the data type, length, and constraints (if necessary).

Step 5: Save the table

  • Click Save (or Ctrl S) to save the table structure.

Run through Java code

Step 1: Import the JDBC library

  • In In the Java code, import the following JDBC library:

    <code class="java">import java.sql.*;</code>
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Step 2: Establish a database connection

  • ##Use

    DriverManager.getConnection() method establishes a database connection:

    <code class="java">Connection conn = DriverManager.getConnection(jdbcUrl, username, password);</code>
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  • where
  • jdbcUrl, username and password are databases respectively Connection URL, username and password.

Step 3: Create a Statement object

  • Create a

    Statement object to perform SQL queries and updates:

    <code class="java">Statement stmt = conn.createStatement();</code>
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Step 4: Execute create table query

    ##Use
  • Statement.executeUpdate()

    Method execution creates table query: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">&lt;code class=&quot;java&quot;&gt;String createTableQuery = &quot;CREATE TABLE table_name (column1_name data_type, column2_name data_type, ...);&quot;; stmt.executeUpdate(createTableQuery);&lt;/code&gt;</pre><div class="contentsignin">Copy after login</div></div>

Step 5: Close the connection

    Finally, close the database connection:
  • <code class="java">stmt.close();
    conn.close();</code>
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