In this release, Oracle XML DB Repository adds advanced foldering and security mechanisms to the database. Oracle XML DB Repository is a new feature that provides a novel file system-like access to all database data. The Repository allows the following actions: Viewing the database and its co...
A free graphical user interface, Oracle SQL Developer allows database users and administrators to do their database tasks in fewer clicks and keystrokes. A productivity tool, SQL Developer's main objective is to help the end user save time and maximize the return on investment in the Oracle Da...
A free graphical user interface, Oracle SQL Developer allows database users and administrators to do their database tasks in fewer clicks and keystrokes. A productivity tool, SQL Developer's main objective is to help the end user save time and maximize the return on investment in the Oracle Da...
I’ll explain this by using examples in DDL, using SQL Server syntax. The short version of this is fairly simple. Every table that you want to use in relations should have a primary key constraint; this can either be a single field or a combination of fields defined by an expression. ...
For example, click on the “DDL” view to show the underlying SQL statement that defines a table, as well as the columns and their respective data types that are included in that view. Using the DDL view on a table You can explore other views such as “References”, “Native DDL”, ...
Generating SQL DDL to recreate the database objects Metadata API is available on Oracle Database whenever the instance is operational. It is not available on Oracle Lite. It includes the (new) DBMS_METADATA PL/SQL supplied package. See: Chapter 13, "Using Metadata API" Oracle Text (in...
Data Definition Language (DDL)commands are also calleddata definition commandsbecause they are used to define data tables. Data Manipulation Language (DML)commands are used to manipulate data in existing tables by adding, changing or removing data. Unlike DDL commands that define how data is stored...
The TRUNCATE statement, on the other hand, does change data but automatically executes a COMMIT statement. The TRUNCATE statement is therefore a DDL statement.doi:10.1016/B978-155558345-3/50006-9Gavin PowellOracle Performance Tuning for 10gR2 (Second Edition)...
OceanBase 数据库在 V4.3.0 版本新增与 Oracle 兼容的物化视图功能,能够通过预先计算并存储视图结果来提高实时查询效率,支撑快速生成报表和数据分析场景。V4.3.0 版本扩展了 Online DDL、支持了租户克隆等功能。同时对 PDML、LOB 类数据的旁路导入性能和节点的重启流程进行了优化,提高了系统的整体效率。V4.3.0 版本...
Add and modify database files, set up database options, handle filegroups, and view database DDL Reverse-engineer SQL databases Available in for SQL Server for MySQL for Oracle for PostgreSQL dbForge Studio dbForge Studio dbForge Studio