how to convert vob

The use and difference of cast and convert in SQL more the/1/ -Source: SQL Learning Tour:14125Learning Tags:cast ConvertSQL This article guide: both cast and convert in SQL are expressions used to convert an expression of one data type to another data type. CASTAndCONVERTprovides similar functionality, except that the syntax is different.

Reprinted: A very powerful date Formatting Function in SQL ServerSelect convert (varchar (100), getdate (), 0): 05 16 2006 AMSelect convert (varchar (100), getdate (), 1): 05/16/06Select convert (varchar (100), getdate (), 2): 06.05.16Select convert (varchar (100), getdate (), 3): 16/05/06Select

First Reader Network reference The code is as follows Copy Code CONVERT (expr USING transcoding_name) In MySQL, transcoding names are the same as the corresponding character set names. Examples: The code is as follows Copy Code SELECT CONVERT (_latin1 ' Müller ' USING UTF8);INSERT into utf8table (utf8column) SELECT

This is a function of the MSSQL database, the function of the CONVERT function is to convert the data type. and the Convert (char (), opendate,120) You're asking is a function that formats the date field and converts it into character formatting. Next, the three parameters in your function are explained separately: 1.char (20), is the target data type and length

Today, I encountered the problem of converting the date field. After the problem was solved with the help of SQL king, I found the relevant materials on the Internet to learn!SqlDataSource1.SelectCommand = "SELECT ***** '+ RIGHT (XkzSqs. QYMC, LEN (XkzSqs. QYMC)-4) AS requirement enterprise name, XkzSqsSb. SBMC as device name, XkzSqsSb. GGXH as specification model, XkzSqsSb. SL as quantity, CONVERT (nvarchar (10), XkzSqsSb. GZRQ, 126) as date of purch

How to use convert: Format: CONVERT (Data_type,expression[,style]) Description This style is generally in the type of time (datetime,smalldatetime) and String type (Nchar,nvarchar,char,varchar) When they are converted to each other. Example: SELECT CONVERT (varchar), GETDATE (), () now Result is Now --------------------------------------- 09/15/2001 The style n

CONVERT function format in SQL:CONVERT (data_type, expression [, style])Parameter description:ExpressionIs any valid Microsoft® SQL Server™ expression ..Data_typeThe data types provided by the target system, including bigint and SQL _variant. User-defined data types cannot be used.LengthOptional parameters of the nchar, nvarchar, char, varchar, binary, or varbinary data type.StyleDate format style, which converts datetime or smalldatetime da

Processing of date data formats, two examples:CONVERT (varchar (16), time one, 20) results: 2007-02-01 08:02/* time is generally a field in the GETDATE () function or data table */CONVERT (varchar (10), time one, 23) Result: 2007-02-01/*varchar (10) represents the format of the date output, which can occur if not long enough */Statements and Query results:Select CONVERT (varchar), GETDATE (), 0): 2006 10:57

Format:Convert(Data_type, expression[, Style])Convert(Varchar, field name,Format type) Note:This style is generally in the time type (datetime, smalldatetime) and string type (nchar, nvarchar, Char, varchar)It is used only when they are converted to each other. Example:Select convert (varchar (30), getdate (), 101) nowResult:Now---------------------------------------| 09/15/2001 =======================

N.categoryid C.categoryid,c.[name]First query statement: Select C.categoryid,c.[name] from Category C left join News N in C.categoryid=n.categoryid where N.categoryid is NullSecond query statement: Select Categoryid,[name] from category where NOT exists(SELECT * FROM News where Category.categoryid=news.categoryid)* The first performance is undoubtedly the best when the CategoryID is not repeated in the news table, whereas the second performance is good.11.SQL Statement conversion Format functio

Copy codeThe Code is as follows:Select convert (varchar (100), GETDATE (), 0): 05 16 2006 AMSelect convert (varchar (100), GETDATE (), 1): 05/16/06Select convert (varchar (100), GETDATE (), 2): 06.05.16Select convert (varchar (100), GETDATE (), 3): 16/05/06Select convert (va

Statement and query result: Select convert (varchar (100), getdate (), 0): 05 16 2006 10: 57 amselect convert (varchar (100), getdate (), 1): 05/16/06 select convert (varchar (100), getdate (), 2): 06.05.16select convert (varchar (100), getdate (), 3 ): 16/05/06 select convert