oracle table: CREATE TABLE "SCOTT"."TEST_BLOB"    (    "NAME" VARCHAR2(200),     "PHOTO" BLOB   ) Operating Code: private static void OprBlob()        {            var connStr = ConfigurationManager.ConnectionString…

Tested: Firefox 33+ OK Chrome 38+ OK IE 6 -- IE 10 Failed Thanks to 阮一峰's blog: http://www.ruanyifeng.com/blog/2012/09/xmlhttprequest_level_2.html The sample shows how to get blob data using javascript XmlHttpRequest by sync. The w3c tell us cannot s…

原文https://blog.csdn.net/u011070171/article/details/75425740 caffe训练出现如下错误: Unknown bottom blob 'data' (layer 'conv1', bottom index 0) 问题,缺少对应的data. 解决:可能是在训练的时候加入测试迭代数,可是网络文件里并没有测试网络. 检查solver.prototxt里边是否定义了test相关内容,而train.prototxt里边并没有test相关结构.…

Data Base oracle常见错误及解决方案 一.TNS协议适配器错误: 原因: 此问题的原因都是由于监听没有配置好. 解决: 1.打开oracle工具Net Manager,删除服务及监听,重新添加保存或者另存为即可:(我常用解决方案) 2.oraclehome92TNSlistener服务,此监听服务未启动,启动起来即可: 二.关于Oracle.DataAccess.Client.OracleConnection的类型初始值设定项引发异常; 原因: 客户端与服务端版本不兼容: 解决:…

Data Base  Oracle 常用命令 1.登录:(不需要密码,属于管理员权限) conn /as sysdba; 2.查看数据库存储位置: select name from v$datafile; 3.创建表空间: 语法:create tablespace 表空间名称 datafile '数据文件的路径' size 大小; 示例:create tablespace test_db datafile 'D:\ORACLE\ORADATA\ORCL\test_db.dbf' size 300…

0. Introduction and Prerequisites This article presents an overview on how to use Oracle Data Integrator in order to manipulate data from Oracle Cloud Infrastructure Object Storage. The scenarios here present loading the data from an object storage i…

Flashback Data Archive feature is part of Oracle Total Recall technology. Flashback Data Archive feature lets you to track changes made in any number of tables for any given retention time. The retention time can be some days or months or years.Flash…

This is a guest blog from Robin Moffatt. Robin Moffatt is Head of R&D (Europe) at Rittman Mead, and an Oracle ACE. His particular interests are analytics, systems architecture, administration, and performance optimization. This blog is also posted on…

sqoop import -D oraoop.disabled=true \ --connect "jdbc:oracle:thin:@(description=(address=(protocol=tcp)(host=HOSTNAME)(port=PORT))(connect_data=(service_name=SERVICE_NAME)))" \ --username USERNAME --table TABLE_NAME --null-string '\\N' --null-n…

oracle的闪回很早就出来了,准确的说一直以来应该都较少被真正用户广为使用,除了dba和极少部分开发人员偶尔用于逻辑出错.误删恢复之外,较少被用于产生更有价值的用途. 各种闪回表flashback table.flashback query.flashback transaction都有一定的适用场景,但是他们称不上和其他特性比如分区.并行那么自然和普遍适用性,同时数据存储在撤销表空间,而撤销表空间的性能对系统影响极大,大量的undo保留着会使得更多的顺序读变成随机读.直到oracle 11g…