java – 如何加速oracle正常语句批量操作？

我正在开发工具以持续将更改从MongoDb导出到Oracle数据库.

我有执行批处理操作(Oracle)的问题.

static void save(List result) {
    withBatchConnection { Statement stm ->
        result.each { String line ->
                stm.addBatch(line)
        }
    }
}

static withConnection(Closure closure) {
    def conn = null
    boolean success = false
    while (!success) {
        try {
            conn = getConnection()
            closure.call(conn)
            success = true
        } catch (e) {
            log.error('Connection problem', e)
            log.error(e, e)
            log.info('Retrying for 30 sec')
            sleep(30000)
        } finally {
            conn?.close()
        }
    }
}

static withTransactionConnection(Closure closure) {
    withConnection { Sql sql ->
        OracleConnection conn = sql.getConnection() as OracleConnection
        conn.setAutoCommit(false)
        closure.call(conn)
        conn.commit()
    }
}

static withBatchConnection(Closure closure) {
    withTransactionConnection { Connection conn ->
        def statement = conn.createStatement()
        closure.call(statement)
        statement.executeBatch()
        statement.close()
    }
}

问题是我不能使用预备语句,因为操作顺序非常重要.

当我用Rewrite Batched Statements保存到MySql时,它每秒10k次操作.对于Oracle来说是400次操作

有机会让它更快吗？

我正在使用OJDBC 7和groovy 2.4.7

解决方法:

请将数组大小从客户端设置为最大值并尝试

标签：java,oracle,groovy,batch-processing,ojdbc
来源： https://codeday.me/bug/20190710/1428748.html