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JDBC

How do I get numeric functions supported by database?

package org.kodejava.jdbc; import java.sql.Connection; import java.sql.DriverManager; import java.sql.DatabaseMetaData; import java.sql.SQLException; public class NumericFunction { private static final String URL = "jdbc:mysql://localhost/kodejava"; private static final String USERNAME = "kodejava"; private static final String PASSWORD = "s3cr*t"; public static void main(String[] args) { try (Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD)) { Data...

DWayan · 17 Mar 2008 · 2 menit baca

Artikel oleh Wayan · Sumber: Kode Java ↗

Terjemahan artikel ini belum tersedia. Isi asli ditampilkan.

package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;

public class NumericFunction {
    private static final String URL = "jdbc:mysql://localhost/kodejava";
    private static final String USERNAME = "kodejava";
    private static final String PASSWORD = "s3cr*t";

    public static void main(String[] args) {
        try (Connection connection =
                     DriverManager.getConnection(URL, USERNAME, PASSWORD)) {
            DatabaseMetaData meta = connection.getMetaData();

            // Get numeric functions supported by database
            String[] functions = meta.getNumericFunctions().split(",\\s*");

            for (String function : functions) {
                System.out.println("Function = " + function);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

Here are the numeric functions supported by MySQL database.

Function = ABS
Function = ACOS
Function = ASIN
Function = ATAN
Function = ATAN2
Function = BIT_COUNT
Function = CEILING
Function = COS
Function = COT
Function = DEGREES
Function = EXP
Function = FLOOR
Function = LOG
Function = LOG10
Function = MAX
Function = MIN
Function = MOD
Function = PI
Function = POW
Function = POWER
Function = RADIANS
Function = RAND
Function = ROUND
Function = SIN
Function = SQRT
Function = TAN
Function = TRUNCATE

Maven Dependencies

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.4.0</version>
</dependency>

Maven Central

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