oracle数据库的相关内容

问答 2020-06-14 来自：开发者社区

plsql连接不上oracle数据库但是sqlplus能连接上，?报错

plsql连接不上oracle数据库，重装了一下oracl还是不行报错：如图

问答 2020-06-14 来自：开发者社区

linux下QTCreator中连接oracle数据库失败?报错

刚接触qt和oracle,想测试一下最简单的数据库连接。目前通过QTCreator编译完程序后，我直接在命令行下面执行该程序是可以连接成功的(之前也报相同的错，不过我将当前用户加入oracle的dba组后，执行就没问题了)。但是在qtcreator中通过run来执行该程序还是无法连接，报错还是QOCIDriver:unable to create environment。我在想是不是在qtcre....

问答 2020-06-12 来自：开发者社区

PolarDB（兼容Oracle）JDBC 驱动设置数据库时间格式报错

JDK1.6 驱动：polardb-jdbc16.jar 数据库：PolarDB SQL语句如下： ALTER SESSION SET NLS_DATE_FORMAT='YYYY.MM.DD HH24:MI:SS' 通过navicat直连数据库执行以下语句成功通过程序执行sql报错（org.apache.commons.dbcp.BasicDataSource获取连接连接执行sql）...

问答 2020-06-12 来自：开发者社区

Jfinal 读取Oracle数据库，有Blob字段为NULL 导致报错如何解决?报错

List models = Db.find("SELECT * FROM tableName WHERE..."); table中有blob字段（用来存储用户上传信息，有些信息中没有资料，所以blob是空的）此时table中符合条件的记录中有blob字段是空的数据行，会导致报错。 @JFinal

问答 2020-06-09 来自：开发者社区

JFinal使用Oracle数据库时，SQL参数绑定失效的奇怪问题?报错

@JFinal JFinal 2.2 使用Oracle数据库时，非web应用，SQL参数绑定没有生效，将sql中的参数换成实际数值，可以返回正确结果，这是什么问题？配置：Druid 最新版，ojdbc6驱动 dsOracle = new DruidPlugin(PropKit.get("oraJdbcUrl"),PropKit.get("oraUser"),PropKit.ge...

问答 2020-06-09 来自：开发者社区

excel通过sqlldr导入到oracle数据库?报错

@功夫panda 你好，想跟你请教个问题：你好！我用mysqldump把数据从MySQL导出到本地txt，然后把本地的txt 导入远程的oracle，按照你的方法使用sqlldr没有报错但是数据库表中无数据。 sqlldr username/password@//ip:port/sid control=/home/info.ctl

问答 2020-06-09 来自：开发者社区

Oracle数据库的基础以及操作：报错

我不会用Oracle数据库请教各位前辈: 1.Oracle数据库的导入及导出(最好详细点) exp /@ file= owner= ...

问答 2020-06-08 来自：开发者社区

JFinal oracle数据库不设置主键保存失败?报错

请教个问题jfinal2.2 使用oracle数据库，表里不设置主键。 com.jfinal.plugin.activerecord.ActiveRecordException: java.sql.SQLException: 调用中的无效参数 at com.jfinal.plugin.activerecord.DbPro.save(DbPro.java:588) debug跟到...

问答 2020-06-08 来自：开发者社区

hadoop 统计分析oracle数据库的数据：报错

最近要做个应用功能的探讨，把oracle的大量数据分布式统计分析。。查了几天资料，有些说使用sqoop导出oracle数据为hdfs文件，但是文件名却不能指定，到时候mapreduce统计分析的时候怎么读取指定的文件呢？还有就是sqoop把oracle数据导入到hive，在使用hive api执行hive sql语句分析。不知道是不是这样的。。怎么把oracle的数据导入hadoop系统分布式统....

问答 2020-06-08 来自：开发者社区

web项目连接oracle数据库问题??报错

大家好我导入一个web项目，运行报错: Caused by: java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descripton 显示...

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数据库审计

满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。

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