来源于 http://docs.oracle.com/cd/E11882_01/server.112/e40402/scripts.htm ，主要对一些数据字典脚本进行说明。
B SQL Scripts
This appendix describes SQL scripts that are required for optimal operation of the Oracle Database.
The SQL scripts are described in the following sections:
Creating the Data Dictionary
When you use the Database Configuration Assistant to create a database, Oracle automatically creates the data dictionary. Thereafter, whenever the database is in operation, Oracle updates the data dictionary in response to every DDL statement.
The data dictionary base tables are the first objects created in any Oracle database. They are created in the SYSTEM tablespace and must remain there. The data dictionary base tables store information about all user-defined objects in the database.
Table B-1 lists required scripts, which are run automatically when you create a database using the Database Configuration Assistant. They are described here because you might need to run them if you create a database manually. To run these scripts, you must be connected to Oracle as a user with SYSDBA privileges.
Table B-1 Creating the Data Dictionary Scripts
| Script Name | Needed For | Description |
|---|---|---|
| All databases |
Creates the data dictionary and public synonyms for many of its views Grants PUBLIC access to the synonyms |
|
| All databases |
Runs all scripts required for, or used with, PL/SQL |
|
| Real Application Clusters |
Creates Real Application Clusters data dictionary views |
Creating Additional Data Dictionary Structures
Oracle supplies other scripts that create additional structures you can use in managing your database and creating database applications. These scripts are listed in Table B-2.
See Also:
Your operating system-specific Oracle documentation for the exact names and locations of these scripts on your operating systemTable B-2 Creating Additional Data Dictionary Structures
| Script Name | Needed For | Run By | Description |
|---|---|---|---|
| Performance management |
SYS |
Creates views that can dynamically display lock dependency graphs |
|
| Exporting data to Oracle7 |
SYS |
Creates the dictionary views needed for the Oracle7 Export utility to export data from the Oracle Database in Oracle7 Export file format |
|
| Heterogeneous Services |
SYS |
Installs packages for administering heterogeneous services |
|
| Performance management |
SYS |
Allows I/O to be traced on a table-by-table basis |
|
| Security |
SYS |
Creates the Oracle Cryptographic Toolkit package |
|
| Advanced Queuing |
Creates the dictionary objects required for Advanced Queuing |
||
| Oracle Replication |
SYS |
Runs all SQL scripts for enabling database replication |
|
| Storage management |
Any user |
Analyzes chained rows in index-organized tables |
|
| Performance management |
SYS or SYSDBA |
Enables DBA to lock PL/SQL packages, SQL statements, and triggers into the shared pool |
|
| Concurrency control |
SYS or SYSDBA |
Provides a facility for user-named locks that can be used in a local or clustered environment to aid in sequencing application actions |
|
| Performance monitoring |
SYS |
Respectively start and stop collecting performance tuning statistics |
|
| Storage management |
Any user |
For use with the Oracle Database. Creates tables for storing the output of the ANALYZEcommand with the CHAINED ROWS option. Can handle both physical and logical rowids. |
|
| Year 2000 compliance |
Any user |
Provides functions to validate that CHECKconstraints on date columns are year 2000 compliant |
|
| Metadata management |
Any user |
Creates tables and views that show dependencies between objects |
|
| Constraints |
Any user |
For use with the Oracle Database. Creates the default table (EXCEPTIONS) for storing exceptions from enabling constraints. Can handle both physical and logical rowids. |
|
| PL/SQL |
SYS |
Used primarily for upgrade and downgrade operations. It invalidates all existing PL/SQL modules by altering certain dictionary tables so that subsequent recompilations will occur in the format required by the database. It also reloads the packages STANDARD andDBMS_STANDARD, which are necessary for any PL/SQL compilations. |
|
| PL/SQL |
SYS |
Used to change from 32-bit to 64-bit word size or vice versa. This script recompiles existing PL/SQL modules in the format required by the new database. It first alters some data dictionary tables. Then it reloads the packagesSTANDARD and DBMS_STANDARD, which are necessary for using PL/SQL. Finally, it triggers a recompilation of all PL/SQL modules, such as packages, procedures, and types. |
|
| Performance monitoring |
SYS or SYSDBA |
Displays a lock wait-for graph, in tree structure format |
|
| Security |
SYS or SYSDBA |
Creates PL/SQL functions for default password complexity verification. Sets the default password profile parameters and enables password management features. |
|
| PL/SQL |
SYS |
Recompiles all existing PL/SQL modules that were previously in an INVALID state, such as packages, procedures, and types. |
|
| Examples |
SYS or any user with DBA role |
Creates sample tables, such as emp and dept, and users, such as scott |
|
| Oracle Replication |
Any user |
Copies a snapshot schema from another snapshot site |
|
| Performance management |
SYS |
Creates the TKPROFER role to allow the TKPROF profiling utility to be run by non-DBA users |
|
| Partitioned tables |
Any user |
Creates tables required for storing output ofANALYZE TABLE ...VALIDATE STRUCTUREof a partitioned table |
|
| Performance management |
Any user |
Creates the table PLAN_TABLE, which holds output from the EXPLAIN PLAN statement |
The "NO" Scripts
The scripts in Table B-3 are used to remove dictionary information for various optional services or components.
See Also:
Oracle Database Upgrade Guide for more information about these scripts| Script Name | Needed For | Run By | Description |
|---|---|---|---|
| Objects |
SYS |
Drops views and synonyms on dictionary metadata that relate to object types |
|
| Security |
SYS |
Drops views and synonyms on auditing metadata |
|
| Heterogeneous Services |
SYS |
Removes Heterogeneous Services dictionary metadata |
|
| Partitioning |
SYS |
Drops views and synonyms on dictionary metadata that relate to partitioned tables and indexes |
|
| Server Manager |
SYS |
Removes Oracle7 Server Manager views and synonyms |
|
| Distributed management |
SYS |
Drops the DBSNMP user and SNMPAGENT role |
Upgrade and Downgrade Scripts
The scripts in Table B-4 are used when upgrading or downgrading to another release of Oracle. To run these scripts, you must be connected to Oracle as a user with SYSDBA privileges.
Table B-4 Upgrade and Downgrade Scripts
| Script Name | Needed For | Description |
|---|---|---|
| Downgrading |
Provides a direct downgrade path from the new Oracle Database 11g release |
|
| Upgrading |
Provides a direct upgrade path to the new Oracle Database 11g release |
|
| Pre-Upgrade Information |
Analyzes the database to be upgraded, detailing requirements and issues for the upgrade to Oracle Database 11g Release 2 (11.2) |
|
| Post-Upgrade Status |
Displays the component upgrade status after an upgrade to Oracle Database 11g Release 2 (11.2) |
Java Scripts
The scripts in Table B-5 are useful only if the JServer option is installed.
| Script Name | Description |
|---|---|
| Initializes JServer by installing core Java class libraries and Oracle-specific Java classes |
|
| Removes all elements of the JServer |
|
| Installs Java-related packages and classes |
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