Common PHP framework function comparison table
Since the development of PHP, a lot of frameworks have been used, although each framework has not been specifically developed to the depth, but for each of the PHP framework used to understand the functionality. At this point, I will be commonly used by some of the PHP framework functions to form a table, I hope tha
Mysql and oracle table field definitions comparison description mysql oracle VARCHAR www.2cto.com variable-length string VARCHAR [0-65535] definition length is calculated by default, if it is GBK-Encoded chinese characters will occupy 2 bytes, if the total byte length of the field definition exceeds 65535, it will be automatically converted to the MEDIUMTEXT type definition VARCHAR2 [1-4000] VARCHAR is a sy
Horizontal Table to longitudinal tableHorizontal table Style:SQL statements:1 SelectName,'language' asSubjects, Chinese asResults fromHorizontaltab2 Union All3 SelectName,'Mathematics' asSubjects, Math asResults fromHorizontaltab4 Union All5 SelectName,'English' asSubjects, 中文版 asResults fromHorizontaltab6Order by Name, account descConversion Result:Advantages and disadvantages of horizontal table:Advant
MySQL5.6 5.7 user temporary table comparison
Session-based temporary tableThe structure and content of the temporary table generated by default in MySQL5.6 are all in tmpdir5.6 The temporary tablespace without ibtmp1 is placed under tmpdir. Of course, after the session is interrupted, the two files will disappear. Let's take a look at the 5.7A temporary
This article provides a detailed analysis of the simple comparison table from MySQL to MongoDB. For more information, see MongoDB.
Query:MySQL:SELECT * FROM user
Mongo:Db. user. find ()
MySQL:SELECT * FROM user WHERE name = 'starlil'
Mongo:Db. user. find ({'name': 'starlil '})
Insert:MySQL:Insert inot user ('name', 'age') values ('starlil', 25)
Mongo:Db. user. insert ({'name': 'starlee ', 'age': 25 }
Use of the adjacent table and comparison with the vector.In the past few days, I have encountered some questions that have high requirements for Edge building. However, it is difficult for a vector to build edges, So we learned the adjacent table .. The following are my views on the adjacent table.Storage Method of the adjacent tableAn adjacent
Comparison between MySQL and Oracle table field definitions
Description
MySQL
Oracle
Varchar
Variable-length string
Varchar The definition length is calculated by the character length by default.GBKThe Encoded chinese characters will occupy2Bytes
Varchar2 [2-4000]VarcharYesVarchar2SynonymDefinition is calculated by byte length by default
Tin
POI Excel cell background Color setting method and color comparison table:Copy
123456
ICellStylestyle=workbook.CreateCellStyle();style.FillForegroundColor=NPOI.HSSF.Util.HSSFColor.Red.Index;style.FillPattern=FillPattern.SolidForeground;ICellcell=workbook.CreateSheet().CreateRow(0).CreateCell(0);cell.CellStyle=style;
Color table:
Color
Test
Class name
This article mainly introduces the error-level variable Comparison table of PHP error_reporting. you can use the error_reporting () function to set errors in PHP:
Its parameters include string and number representation methods, which have a total of 14 levels. However, I can see other numbers, at first, I thought it meant a certain error interval. later, I finally found the rule:
The code is as follows:
E
Smarty comparison operator Table
Operator
Chinese explanation
eq
Equal
NE, NEQ
Not equal
Gt
Greater than
Lt
Less than
GTE, GE
Greater than or equal
LTE, Le
Less than or equal
Not
Non -
MoD
Die-finding
Is (not) div by
Wh
The table below shows the role of PHP types and comparison operators when they are loosely and rigorously compared. The supplemental material is also relevant to the relevant section of the type-juggling. At the same time, a large number of user comments and»blueshoes work also provides help for this material.Before using these tables, you need to understand the types of variables and their meanings. For ex
XMLHttpRequest Object Status and StatusText property comparison table
Status
StatusText
Description
0**
-
has not been initiated
1**
-
request received, continue processing
100
Continue
Customer must continue to make a request
101
Switching protocols
Client requires server to convert HTTP
of the three subjects (for absolute value)--using ABS (Math-english) ABS (Chinese-english) ABS (Math-chinese) 2-Find out the difference between mathematics and English in the whole class, the difference between Chinese and English scores, the maximum value of the difference between math and English--max (ABS (Math-english)), Max (ABS (Chinese-english)), M AX (ABS (Math-chinese)) 3-finds the maximum value in the 2 result 4-Search in the student table
This article mainly introduces the error-level variable Comparison table of PHP error_reporting. you can use the error_reporting () function to set errors in PHP:
Its parameters include string and number representation methods, which have a total of 14 levels. However, I can see other numbers, at first, I thought it meant a certain error interval. later, I finally found the rule: The code is as follows: er
Http://www.cnblogs.com/liaohenchen/archive/2008/11/10/silverlight-combobox-fontfamily.htmlRecently in Silverlight to achieve a selection of fonts in the ComboBox effect, the results found that there is no ready-made font and value of the comparison table, special finishing a copy, share with you
However, the current silverlight2 RC (pre-release) version of this property does not have Selectvalue, do n
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