更新时间:2024-06-27 GMT+08:00
创建Phoenix表
功能简介
Phoenix依赖HBase作为其后备存储,支持标准SQL和JDBC API的强大功能,使得SQL用户可以访问HBase集群。
代码样例
以下代码片段在com.huawei.bigdata.hbase.examples包的“PhoenixSample”类的testCreateTable方法中。
/** * Create Table */ public void testCreateTable() { LOG.info("Entering testCreateTable."); String URL = "jdbc:phoenix:" + conf.get("hbase.zookeeper.quorum"); // Create table String createTableSQL = "CREATE TABLE IF NOT EXISTS TEST (id integer not null primary key, name varchar, " + "account char(6), birth date)"; try (Connection conn = DriverManager.getConnection(url, props); Statement stat = conn.createStatement()) { // Execute Create SQL stat.executeUpdate(createTableSQL); LOG.info("Create table successfully."); } catch (Exception e) { LOG.error("Create table failed.", e); } LOG.info("Exiting testCreateTable."); } /** * Drop Table */ public void testDrop() { LOG.info("Entering testDrop."); String URL = "jdbc:phoenix:" + conf.get("hbase.zookeeper.quorum"); // Delete table String dropTableSQL = "DROP TABLE TEST"; try (Connection conn = DriverManager.getConnection(url, props); Statement stat = conn.createStatement()) { stat.executeUpdate(dropTableSQL); LOG.info("Drop successfully."); } catch (Exception e) { LOG.error("Drop failed.", e); } LOG.info("Exiting testDrop."); }
父主题: HBase数据读写样例程序