postgres enum type

[Disclaimer: some of the content in this article is derived from network information and cannot be determined due to attribution issues. No source of citation is provided here. If you have any copyright issues, please contact us and delete the content suspected of copyright issues in a timely manner !] Error description: -------------------- Configuration: myproject-Win32 debug --------------------Compiling...Stdafx. cppG:/temp/myproject/debug/msado15.tlh (171): Error c2011: 'locktypenum': '

For: Enum Color {Red,blue,black Yellow,green}; (1) ordinal () method: Returns the order of enumerated values in the enumeration class. This order depends on the order in which the enumeration values are declared.Color.RED.ordinal (); Return Result: 0Color.BLUE.ordinal (); return Result: 1(2) CompareTo () method: An enum implements the Java.lang.Comparable interface, so it can be compared to the order of th

StackoverflowWonderful answer to the removal plan.Original title link: original title linkHow to use Enums in C++problem:Suppose we have a enum like the following:enum Days { Saturday,Sunday,Tuesday,Wednesday,Thursday,Friday };I want to create the instance of this enum and initialize it with a proper value, so I do:Days day = Days.Saturday;Now I want to check my variable or instance with a existing

First, the structure, the American drama type all belong to the value type(a) Structural bodyis a custom collection, which can be placed in various types of elements, the usage is generally the same as the collection.usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;usingSystem.Collections;//To use the ArrayList collection, you must first refer to this

1. A customer class and an enumeration subclass partner are defined in the Pojo entity class.class customer{ privateint ID; Private Partner type; ...} class enum partner{ provider,customer; }When writing to the database, you can choose to write to the int type or string type. This depends on the configur

Today, I saw a lot of code written by programmers, which is always converted back and forth between enum and string. I am not sure whether struts2 can convert the enum type. The struts2 documentation does not support automatic conversion of enum, by reading the source code of DefaultTypeConverter of struts2, we can fin

Read Source: Official Swift2.0 Tutorial Chinese versionToday we learned the enumeration types of swift, and the following are the contents and summaries:Use enum to create an enumeration. Like classes, enumerations can also contain methods.enumrank:int{caseace=1casetwo, three,four,five,six,seven,eight,nine,tencase Jack,queen,kingfuncsimpledescription () -> String{switchself{ case. ace:return "Ace" NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;CASENBSP;

The Memory Length occupied by struct variables is the total memory length occupied by each member. Each member occupies its own memory unit. The Memory Length occupied by the shared body variable is equal to the longest member length. Note: 1. the members that are last stored when a member plays a role in a shared object variable is saved to a new member, and the original members become ineffective. 2. You cannot take the shared body variable as a function parameter or bring the funct

If a variable requires several possible values, it can be defined as an enumeration type. The reason for enumeration is to enumerate the possible values of variables or objects.For example, to make everyone better understand that there is a pen in a pencil, but you don't know what it is before you open it, it may be a pencil or a pen. There are two possibilities, so you can define an enumeration type to rep

C # traverse the enum type For the enum type: Use foreach to traverse enum-type Elements and fill in combox Foreach (HatchStyle hs1 in Enum. GetValues (typeof (HatchStyle ))){ComboBox1.

the following variablesSt.shuzu = new string [9];//need to open space before useSt.shuzu[0] = "Zhao Liu";//Array element assignment methodStudent st1 = new Student ();//You can initialize the class multiple times, note the different variable namesSt1.name = "John Doe";st1.nianling = 22;St1.sex = "female";#endregion}Enum Type:1. Enumeration type for strings, no m

Write a helper that operates the enum Enumeration type to implement the following functions:1. The Enum object value can be obtained from the int value.2. The Enum object value can be obtained from the string value.3. The Enum object value can be obtained from the hex value.

D:\visual studio\vc\include\codeanalysis\sourceannotations.h: Error C2011: "Vc_attributes::yesnomaybe": "Enum" Type redefinition d:\microsoft Visual Studio 9.0\vc\include\codeanalysis\sourceannotations.h (47): See "Vc_attributes:: Yesnomaybe "Statement d:\visual studio\vc\include\codeanalysis\sourceannotations.h: Error C2011:" Vc_attributes:: AccessType ": enum

if(GetValue (Var). GetClass (). Isenum ()) { OneSqlType =Types.varchar; A } - } - returnSqlType; the } -} 1 public void Insertphysiccolumn (Metaphysiccolumn physiccolumn) { 2 String sql = "INSERT into Meta_physic_column (ID, name, description, table_id, D Ata_type, Primary_key) VALUES (: ID,: Name,:d escription,: tableId,:d atatype,:p rimarykey) " 3 sqlparametersource paramsource = new Span style= "COLOR: #000000" > Mybeanpropertysqlparame

namespace struct _ enum type{Class Program{struct Jiegouti{public int Fenshu;public string name;public string Kecheng;}static void Main (string[] args){Jiegouti a = new Jiegouti ();Jiegouti B = new Jiegouti ();A.fenshu = 95;A.name = "About Rick";A.kecheng = "League of Legends";Console.WriteLine ("Name:" + a.name + "\ n Course:" + A.kecheng + "\ n Score:" + A.fenshu);B.fenshu = 100;B.name = "Kael ' THAs";B.k

1. Bean@Entity @table (name = "Entities") public class Entities {public enum EntityType {location , group; } Private EntityType Locationorgroup; @Column (name= "Location_or_group") @Enumerated (enumtype.string)//should set the type of Location_or_group to varchar in database public EntityType Getlocationorgroup () {return locationorgroup; } public void Setlocationorgroup (EntityType locatio

enum enum type #includeC language-enum type

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/* * Created by sharpdevelop. * User: noo * Date: 2009-8-16 * Time: 21:03 * * Enumeration type */ Using system;Enum Enuma: int{East, // 0South, // 1West, // 2North, // 3}Enum enumb // The default value is int.{Left, // 0Right, // 1}

another process. For example, if you use an enumeration type (although you should not use an enumeration type), each process will repeatedly create and initialize the required memory, and any abstract adapters, temporary variables, and other loads will also recur.Another multi-process problem is the dependency between them. For example, if you run a content provider on the default process that hosts the UI

The entity class product has a Member State that is an enumeration productstates Public Class Product{ Public Productstates state Productstates is an enumeration.PublicEnumProductstates:Short{ How should I write the state type in HBM. xml? Int16? This is a real question, and the record examples are not answered. I have to make some comments for Google queries. Fixed bug in mapping that requiredType = "full. Name. Of.