teradata datediff

Label:DateDiff (Week,zy_time,getdate ()) =0//query this week DateDiff (Month,zy_time,getdate ()) =0//enquire this month This season: SELECT * from table where DATEDIFF (Qq,c_calltime,getdate ()) =0First half year 1-6, after half year 7-12:select * from table where DATEPART (mm,c_calltime)/7 = datepart (Mm,getdate ())/7 1. Current system date, timeSelect GETDATE () 2. DateAdd returns a new datetime value bas

Reference:http://www.cnblogs.com/coconut_zhang/archive/2009/02/02/1382598.htmlHttp://blog.itpub.net/14766526/viewspace-1156100/Select GETDATE () as ' current date ',Datename (Year,getdate ()) as ' year ',Datename (Month,getdate ()) as ' month ',Datename (Day,getdate ()) as ' Day ',Datename (Dw,getdate ()) as ' Week ',Datename (Week,getdate ()) as ' Week number ',Datename (Hour,getdate ()) as ' when ',Datename (Minute,getdate ()) as ' min ',Datename (Second,getdate ()) as ' s '1. Current system d

[CSDN report] Some time ago, an article was published on Gigaom: whatunbelievablenewservicesdoesAmazonhaveontap? Now we know at least one of them, Amazon's incredible new service, Redshift data warehouse service, points to Oracle, IBM, and Teradata. [CSDN report] Some time ago, an article on Gigaom was published: what unbelievable new services does Amazon have on tap? Now we know at least one of them, Amazon's incredible new service, Redshift data war

) 1629929.1 19 Oracle GoldenGate 11.2.1.0.19 Patch Set Availability Oracle 11g: Microsoft Windows x64 (64-bit), Linux x86-64, ibm aix on POWER Systems (64-bit), Oracle Solaris on iSCSI (64-bit)MYSQL: Microsoft Windows x64 (64-bit)Sybase 15.0 and 15.5: Linux x86-64IBM DB2 9.1 on z/OS: IBM z/OS on System z 1623547.1 18 Oracle GoldenGate 11.2.1.0.18 Patch Set Availability Oracle 11g: Microsoft Windows x64 (64-bit), Linux x86-64, ibm aix on POWER Systems (64-bit),

engines than leading commercial data warehousing applications For open source projects, the best health metric is the size of its active developer community. As shown in Figure 3 below,Hive and Presto have the largest contributor base . (Spark SQL data is not there) In 2016, Cloudera, Hortonworks, Kognitio and Teradata were caught up in the benchmark battle that Tony Baer summed up, and it was shocking that the vendor-favored SQL engine defeated o

there)Source: Open Hub https://www.openhub.net/In 2016, Cloudera, Hortonworks, Kognitio and Teradata were caught up in the benchmark battle that Tony Baer summed up, and it was shocking that the vendor-favored SQL engine defeated other options in every study, This poses a question: does benchmarking make sense?Atscale two times a year benchmark testing is not unfounded. As a bi startup, Atscale sells software that connects the BI front-end and SQL ba

on. A = B. B right inner join C on. A = C. C inner join D on. A = D. d Where ..... 12. Note: Five minutes ahead of schedule reminder SQL: Select * from Schedule where datediff ('minute ', F Start Time, getdate ()> 5 13. Note: One SQL statement is used to handle database paging. Select top 10 B. * From (select top 20 primary key field, sorting field from table name order by sorting field DESC) A, table name B where B. primary key field =. primary key

= B. B right inner join C on. A = C. C inner join D on. A = D. d Where ..... 12. Note: Five minutes ahead of schedule reminder SQL: Select * from Schedule where datediff ('minute ', F Start Time, getdate ()> 5 13. Note: One SQL statement is used to handle database paging. Select top 10 B. * From (select top 20 primary key field, sorting field from table name order by sorting field DESC) A, table name B where B. primary key field =. primary key field

* From Table2 where table1.field1 = table2.field1) 11. Notes: four table join query problems: Select * from a left inner join B on. A = B. B right inner join C on. A = C. C inner join D on. A = D. d Where ..... 12. Note: Five minutes ahead of schedule reminder SQL: Select * from Schedule where datediff ('minute ', F Start Time, getdate ()> 5 13. Note: One SQL statement is used to handle database paging. Select top 10 B. * From (select top

function | function/* T-sql:17 a date-time related Custom function (UDF), Sunday as the last day of the week, not affected by the @ @DateFirst, language version are collected or refined from the old articles! Tips: (@ @Datefirst + datepart (weekday, @Date))% 7 judgment Week is the most insured! Independent of @ @DateFirst and language version @ @DateFirst may cause datepart (weekday, @Date) different! No matter what the @ @DateFirst equals, no matter what language version of SQL Server is always

(1) Try catch use--Open the Try Catch featureSetXact_abort onbeginTrybegin Tran Insert intoTableName (ID)Values(1) Commit Tran Print 'commited'EndTrybeginCatchrollback Print 'rolled Back'EndCatch(2) Get the number of days before the current month one months ( DatePart (date, datetime) DATEADD (date, number, datetime) Cast (exp as datetime))Select DatePart( Day,DATEADD( Day,-1, Cast(cast( Year(getdate()) as nvarchar)+'-'+ cast(Month(getdate()) as nvarchar)

Refer to the following date Writing Method--- Calculate the number of days for differenceSelect datediff (day, '2017-01-01 ', getdate ()) -- 1. The first day of a monthSelect dateadd (mm, datediff (mm, 0, getdate (), 0) -- 2. Monday of the weekSelect dateadd (wk, datediff (wk, 0, getdate (), 0) Select dateadd (wk, datediff