在开发期间已经变得无效的对象的编译无效对象工具、导出和导入工具、创建测试数据的数据生成器工具、用于导出用户对象 DDL 语句的导出用户对象工具、用于比较两个用户对象定义的比较用户对象工具、会话信息工具、事件监视器和一个用于比较并使表内容相同的比较表数据工具,以及一个用于查看和管理您的日程安排事务 DBMS 日程...
SET System Variable Summary: Sets the number of rows, called a batch, that SQL*Plus will fetch from the database at one time. Valid values are 1 to 5000. A large value increases the efficiency of queries and subqueries that fetch many rows, but requires more memory. Values over approximat...
If you plan to use the PL/SQL database language in conjunction with SQL*Plus, refer to the PL/SQL User's Guide and Reference for information on using PL/SQL. Organization This document contains: PART I, Understanding SQL*Plus Contains SQL*Plus user guide and tutorial content. Chapter 1, ...
You can use the DBMS Scheduler tool to access the Oracle database scheduler (DBMS_SCHEDULER) provided in Oracle10g and later: On the left side you see folders for the scheduler object types, as well as a folder for running jobs and job runs. Window groups, Windows and Job classes are sy...
SQL*Plus地另一个强大功能是它对PL/SQL块地支持。PL/SQL是Oracle数据库的编程语言,允许你在SQL语句中嵌入逻辑控制结构、循环、条件语句等,致使SQL查询能够执行更加复杂的任务。在SQL*Plus中你可以方便地运行这些PL/SQL块。例如: FORiIN1..10LOOP DBMS_OUTPUT.PUT_LINE('Number:' i);。 ENDLOOP; 执行后SQL*...
Developer是不支持连接MySQL的, 需要从MySQL官网下载JDBC驱动forMySQL.OracleSQLDeveloper官网下载地址:http://www.oracle.com/technetwork/cn/developer-tools/sql-developer/downloads/index.htmlJDBC for MySQL官网下载地址:http 智能推荐 Oracle sql*plus PLSQL Developer安装 ...
Uses DBMS_METADATA to extract the DDL for the existing table, then modifies that into a create table as select * from. DDL [object_name [type] [SAVE filename]] Generates the code to reconstruct the object listed. Use the type option for materialized views. Use the SAVE option to save ...
SQL_DBMS_NAME 1.0 A character string with the name of the DBMS product accessed by the driver. SQL_DBMS_VER 1.0 A character string that indicates the version of the DBMS product accessed by the driver. The version is of the form ##.##.###, where the first two digits are the major...
9、是否显示用DBMS_OUTPUT.PUT_LINE包进行输出的信息。SQL> SET SERVEROUT[PUT] {ON|OFF} 在编写...
使用SQL*Plus 连接到 Oracle 数据库,输入以下命令: sqlplus your_username/your_password@DG4MSQL 1. 如果连接成功,您将看到提示符。 三、PLSQL 示例代码 以下是一个基本的 PLSQL 示例,展示了如何查询 SQL Server 数据库并返回结果: DECLAREv_emp_name VARCHAR2(50);BEGIN-- 使用远程数据库链接FORrecIN(SELECT...