Oracle 9.2.0.1版函数编译一个小问题
OS:Windows 2003 Server ORACLE9.2.0.1 现象:在进行PL/SQL 函数编译时加上DEBUG会出现死机,详细描述如下: 下面是一个函数:
OS:Windows 2003 Server
Oracle9.2.0.1
现象:在进行PL/SQL 函数编译时加上DEBUG会出现死机,详细描述如下:
下面是一个函数:
SQL> create or replace function A2(arg_bh User_Tables.table_name%type)
2 return number is
3 Result VARCHAR2(50);
4 begin
5 select arg_bh || rpad(arg_bh, 46) || '(测试)' into Result from dual;
6 end A2;
7 /
Function created
SQL> alter function a2 compile;
Function altered
SQL> alter function a2 compile debug;
然后就出现了数据库死机现象,CPU100%
会话处理等待状态,等待事件为null event
锁住了以下系统表
SYS ERROR$
SYS PROCEDUREINFO$
SYS ARGUMENT$
SYS PROCEDUREC$
SYS PROCEDUREJAVA$
SYS VTABLE$
SYS PROCEDURE$
SYS IDL_UB1$
SYS IDL_CHAR$
SYS IDL_UB2$
SYS IDL_SB4$
使用KILL不能杀掉进程,,进程一直处于killed状态,通过orakill命令才可以KILL进程
做过一些测试,发现主要问题是以下代码片段引起的:
arg_bh User_Tables.table_name%type
arg_bh || rpad(arg_bh, 46) || '(测试)'
在数据库 9.2.0.7中同样的代码编译正常,说明这是9.2.0.1的BUG,具体不知道在什么版本中修复了,所以建议大家在开发时最好升级到高一些的版本。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values and pointers to data rows, and is suitable for non-primary key column queries.

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.

MySQL supports four index types: B-Tree, Hash, Full-text, and Spatial. 1.B-Tree index is suitable for equal value search, range query and sorting. 2. Hash index is suitable for equal value searches, but does not support range query and sorting. 3. Full-text index is used for full-text search and is suitable for processing large amounts of text data. 4. Spatial index is used for geospatial data query and is suitable for GIS applications.

Data Integration Simplification: AmazonRDSMySQL and Redshift's zero ETL integration Efficient data integration is at the heart of a data-driven organization. Traditional ETL (extract, convert, load) processes are complex and time-consuming, especially when integrating databases (such as AmazonRDSMySQL) with data warehouses (such as Redshift). However, AWS provides zero ETL integration solutions that have completely changed this situation, providing a simplified, near-real-time solution for data migration from RDSMySQL to Redshift. This article will dive into RDSMySQL zero ETL integration with Redshift, explaining how it works and the advantages it brings to data engineers and developers.
