how to check date in sql

CONVERT (Data_type,expression[,style])CONVERT (varchar (10), field name, conversion format)DescriptionThis style is typically in the time type (Datetime,smalldatetime) and the string type (Nchar,nvarchar,char,varchar)It is only used when converting

Date functionDate functions manipulate Date values (fields of date type), timestamp values (TIMESTAMP, TIMESTAMP with time ZONE, and TIMESTAMP with the fields of the local time ZONE type), and interval values (INTERVAL day to SECOND and INTERVAL

Reproduced in this blog, the original blog: http://blog.csdn.net/baiduandxunlei/article/details/9180075CONVERT (Data_type,expression[,style])CONVERT (varchar (10), field name, conversion format)DescriptionThis style is typically in the time type

Common SQL Server date comparison and date query statements In SQL Server, you may need to obtain the current date and calculate some other dates. For example, your program may need to determine the first or last day of a month. Most of you probably

This article consists of three parts, collecting several methods for processing MSSQL datetime on the Internet. Here, we will sort the data according to my collection order. Part 1: SQL statistics for this month and this weekStatistics for this

Generally, you need to obtain the current date and calculate some other dates. For example, your program may need to determine the first or last day of a month. Most of you probably know how to divide a date (year, month, day, and so on ), then,

13. T-SQL and SQL query AnalyzerWhat is SQL?What is T-SQL?Introduce new features of T-SQLHow to Use T-SQLSummaryIn this chapter, we will introduce some basic concepts about the Structured Query Language and transact-SQL and their differences. This

SQL Server Date and Time Processing set When the convert date conversion format is 20 or 120, the resulting string does not contain milliseconds.For example, select convert (varchar (23), getdate (), 120 or 20)21:46:43 When the date conversion

　　SQL statement gets a specific date 1. The first day of one months Select DATEADD (mm, DATEDIFF (Mm,0,getdate ()), 0) 2. Monday of this week Select DATEADD (wk, DATEDIFF (Wk,0,getdate ()), 0) 3. The first day of the year Select DATEADD (yy,

35. use SQL query analyzer and SQL profilerUse SQL query AnalyzerUse SQL profilerOptimize T-SQL statementSummaryIn this chapter, we will continue with the description of the pre-stored procedures in Chapter 21st. This chapter describes how to use