The C# standard only lists double and float as floating points available (those being the C# shorthand for System.Double and System.Single), but the decimal type (shorthand for System.Decimal) is also a floating point type really - it's just it'sdeci…
Fundamental types void type boolean type character types integer types Modifiers signedness size Properties Data Models Floating-point types Floating-point properties Void type void-type with an empty set of values.There are no arrays of void,nor ref…
Primitive Data Types (The Java™ Tutorials > Learning the Java Language > Language Basics) https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html « Previous • Trail • Next » The Java Tutorials have been written for JDK 8. Examples a…
Floating Point Math Your language isn't broken, it's doing floating point math. Computers can only natively store integers, so they need some way of representing decimal numbers. This representation comes with some degree of inaccuracy. That's why, m…
Mapbox Vector Tile Specification A specification for encoding tiled vector data. <?XML:NAMESPACE PREFIX = "[default] http://www.w3.org/2000/svg" NS = "http://www.w3.org/2000/svg" />License The text of this specification is licens…
Entities An entity is a lightweight persistence domain object. Typically an entity represents a table in a relational database, and each entity instance corresponds to a row in that table. The primary programming artifact of an entity is the entity c…
hive函数参考手册 原文见:https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF 1.内置运算符1.1关系运算符 运算符 类型 说明 A = B 所有原始类型 如果A与B相等,返回TRUE,否则返回FALSE A == B 无 失败,因为无效的语法. SQL使用”=”,不使用”==”. A <> B 所有原始类型 如果A不等于B返回TRUE,否则返回FALSE.如果A或B值为”NULL”,结果返回”NULL”.…
转自:http://www.cnblogs.com/end/archive/2012/06/18/2553682.html 1.内置运算符1.1关系运算符 运算符 类型 说明 A = B 所有原始类型 如果A与B相等,返回TRUE,否则返回FALSE A == B 无 失败,因为无效的语法. SQL使用”=”,不使用”==”. A <> B 所有原始类型 如果A不等于B返回TRUE,否则返回FALSE.如果A或B值为”NULL”,结果返回”NULL”. A < B 所有原始类型 如果A小…
http://www.zvolkov.com/clog/2009/07/09/why-nhibernate-updates-db-on-commit-of-read-only-transaction/ Always be careful with NULLable fields whenever you deal with NHibernate. If your field is NULLable in DB, make sure corresponding .NET class uses Nu…
