Don't waste the effect of data types
When you want to store digital data, you might want to specify a numeric data type. Before you do so, please consider the purpose of the data first. For example, you wouldn't use a block number or a zip code for
Reference URL: Http://www.w3school.com.cn/sql/sql_datatypes.aspMicrosoft Access data type
Data Type
Description
Storage
Text
Used for text or a combination of text and numbers. A maximum of 255 characters.
Microsoft Access Data type
Data Type
Description
Storage
Text
Used for text or a combination of text and numbers. A maximum of 255 characters.
Memo
Memo is used for a larger number
Technology of the kingdom is too fascinating, I just engaged in it was seduced by various technologies, all want to learn. I still count word of that kind of person, fortunately have a little perseverance, so all sorts of things are contaminated a
I. Meaning and usage of various data types in the design view of the table, each field has a design type, and Access allows nine data types: text, remarks, values, date and time, currency, automatic number, whether, OLE object, hyperlink, query
MySQL has three types of columns: Numbers, strings, and dates. The numeric column type is used to store various numeric data, such as price, age, or quantity. There are two types of numeric columns: integer and floating point. All numeric column
MySQL has the following field types:
VarcharTinyintTextDateSmallintMediumintIntBigintFloatDoubleDecimalDatetimeTimestampTimeYearCharTinyblobTinytextBlobMediumblobMediumtextLongblobLongtextEnumSetBoolBinaryVarbinary
1. Text Type
Char
Usage: Char
I have posted two inner sorting articles. (1) At that time, the Merge Sorting was not written out. (2) today, the non-recursive quicksort stack has memory leakage, and the main program option function is not well supported, so I wrote it again
How to Implement the active registration function of Zabbix to implement zabbix
Active Agent Auto-Registration. As the name suggests, you do not need to manually add host information on Zabbix Web to monitor hosts.
It is automatically registered
===
The most common MySQL data types are varchar, decimal, date, Int, text, and timestamp.
First:
Varchar is generally used to represent a variable length string up to 255 characters. If you want to store and process alphanumeric data, this data
Go from "translation" Nehe OpenGL tutorialObjectiveStatement, this Nehe OpenGL tutorial series of articles by 51 blog yarin Translation (2010-08-19), this blog for reprint and a little collation and modification. Thank you for compiling Nehe's
MySQL data types: bitsCN.com
MySQL has three main data types: Text, numbers, and date/time. Text: data type description CHAR (size) stores fixed-length strings (can contain letters, numbers, and special characters ). Specify the length of the string
MAX_PATH Explanation: File name is the longest (ANSI), plus the drive letter (x:\) 3 bytes, 259 bytes, plus the Terminator 1 bytes, total 260http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247 (v=vs.85). aspxhttp://support.microsoft.com/
Technical Exchange, DH explanation.
I wrote it once before, and now I want to rewrite it all. It's more basic.
I remember that one of my interview questions was displayed on the box. The first question is:The difference between ansistring and
In my previous articleArticlePing service -- is your blog "pinged? In, I introduced some situations of the ping service technology, and then I mentioned that my current virtual host does not support the ping command sending function, this allows me
Filesystem Hierarchy Standard (file system directory standards) abbreviations, most Linux versions of this file organization, similar to the Windows operating system in the C-disk file directory, FHS tree structure to organize files. In fact, FHS is
Don't waste the effect of data types
When you want to store digital data, you might want to specify a numeric data type. Before you do so, please consider the purpose of the data first. For example, you wouldn't use a block number or a zip code for
1. Integral type
MySQL data type
Meaning (Signed)
tinyint (m)
1 byte range ( -128~127)
smallint (m)
2 byte range ( -32768~32767)
Mediumint (M)
3 byte range ( -8388608~8388607)
In Smartform, fields of quantity and amount types are displayed in a way that is not on the same level as the other fields: &itab-menge (C) &, the following are several considerations for setting the Smartform field parameters:
1, when using
A. Numeric type
MySQL supports numeric types in all standard SQL, including strict data types (integer,smallint,decimal,numberic), and approximate numeric data types (float,real,double presision). And on this basis to expand.
After the expansion,
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