small database

When we do not have Visio and other database design software, often we directly in the SQL Enterprise Manager directly design the database, and then add a database dictionary to facilitate future work and management. Sometimes I am very distressed because we have to play two times the data field of the description, trouble. But not quite, not long ago, I found a

Fortunately, this week began the PHP learning, Web page behavior part of the server-side execution of the program language, PHP full name is hypertext preprocessor, is a widely used in web programming language, In particular, it can be applied to the development of web programs and can be embedded in HTML files, and its syntax is similar to C, Java and Perl syntax. PHP is designed to enable website developers to quickly compose dynamic Web pages. PHP is not only the output of HTML files, but als

stored procedure that requires you to purchase, ship, and print a small ticket.In the absence of this goods and for the purchase, add this line of information;In the absence of this goods and for shipping, print without this cargo!The following starts the execution of the statement:Statement one: Incoming goods, number 1001 added 10Statement two: 1001 Goods shipped 5 unitsA small ticket is printed each tim

into memory to establish the corresponding object.2.Access, SQL Server can simply understand to do 2 things, first he provides a unified interface, any language any process through SQL can communicate with it, get data.The second thing he provides is an indexing mechanism that allows you to locate query results based on SQL by not having to load all the data into memory.3. Modify the object structure will cause the data can not be read, need to keep the original object and the new object, the o

Data is the core information asset of an enterprise. The importance of ensuring data integrity, availability, and security to the normal operation of the enterprise is self-evident, and the database is the core software that carries this important role, is the core of all application systems. This article will discuss some principles of Small and Medium-sized Enterprises in

Answer A,The easiest way may be to analyze the database firstcan use the whole library analysis, see your database in the end is not big, if too large, the whole library analysis is not a good way.After analysis, query dba_tables/user_tables can be 1.Analyze All Tables2.select sum (num_rows) from Dba_tables Select Table_name,num_rows from User_tables;But it's not up to date.It's up to date under certain con

[Original] key-value small database tmdb released: principles and implementation The key-value database is a typical old-fashioned database, from DBM in the early UNIX era, gdbm in the later GNU version, and ndbm, sdbm, CDB and the powerful Berkeley dB (bdb), as well as qdbm, which has been booming over the past two ye

This paper summarizes the previous articles and realizes a small image retrieval application. A small image retrieval application can be divided into two parts: Train, build the feature database of the image set. Retrieval, retrieving, given image, returning the most similar image from the image Library The process for building an image

When installing a small patch on the RAC database, you can use Rolling installation to stop the service. That is to say, when installing the patch, you must first stop a database instance. When installing a small patch on the RAC database, you can use Rolling installation to

For new SQL Server database DBAs, pay attention to some small details. Any optimization or modification is based on the business situation. You are welcome to make a picture of what may be wrong or inaccurate. 1.We recommend that you set auto-growth when creating a database to increase by MB (M), and set the step size based on the business volume. Generally, we r