Today would like to write a code to practice practicing, the idea is very good results, planted a big somersault, in this error lingered for 4 hours to solve, now share out, give everyone to wake up, put the code first:
Copy Code code as
Original link: http://www.cnblogs.com/netsql/archive/2010/05/04/1727323.html1. Table names are generally implemented as "module name _ Specific table name", and the same prefix is the same for a module. (Oracle is case sensitive and can be used in
Database Design tables and field naming rules (I have sorted them out. I hope you can give more suggestions) 1. database Table naming rules: (1) prefix should be added before the table name. The prefix of the table is an English abbreviation of the
1. Tables and their properties
Table: Also known as an entity, is a collection of data that is stored in the same type.
Column (field): Also called a field, domain, or attribute, which forms the schema of a table, expressed as a
After I log on with Scott/tiger and create a table, I will insert data, prompting that I have successfully inserted the table, but there is no record when querying the data, the reason is that my Scott user does not have the permission to insert
This article only for backup purposes, the original address: http://blog.csdn.net/u013628152/article/details/43229155One: Table name definition specification:(1) The name of the database table is the plural form of the noun and all lowercase, such
ORACLE System Table Overview, oracle Overview
Oracle System Table Overview
The following is a comprehensive introduction to Oracle system tables: the data dictionary dict always belongs to the Oracle user sys.
1. User:
Select username from
WordPress only uses 10 tables: wp_comments, wp_links, wp_options, wp_postmeta, wp_posts, wp_term_relationships, wp_term_taxonomy, wp_terms, wp_usermeta, wp_users
There are roughly five categories by functionUser information: wp_users and
18. Create and use a view tableView tableView table conceptsCreate a viewModify and delete a tableEnhanced viewing table functionality in SQL Server 2000SummaryIn Chapter 17th, we learned about indexes. indexes are a secondary database structure
What is the environment?http://www.lua.org/manual/5.1/manual.html#2.9
Besides Metatables, objects of types thread, function, and UserData has another table associated with them, called their Environment. Like Metatables, environments is
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.