SEQUENCE语法如下: (创建一个序列对象并指定其属性) CREATESEQUENCE[schema_name .]sequence_name[AS [ built_in_integer_type | user-defined_integer_type]][START WITH <constant>][INCREMENT BY <constant>][{ MINVALUE [ <constant>]}|{ NO MINVALUE } ][{ MAXVALUE [ <constant>]}|{ NO MAXVALUE...
SEQUENCE语法如下: (创建一个序列对象并指定其属性) CREATESEQUENCE[schema_name .]sequence_name[AS [ built_in_integer_type | user-defined_integer_type]][START WITH <constant>][INCREMENT BY <constant>][{ MINVALUE [ <constant>]}|{ NO MINVALUE } ][{ MAXVALUE [ <constant>]}|{ NO MAXVALUE...
This post is intended to be a quick reference for creating and using Sequences in SQL Server 2012, as authored in a Visual Studio 2010 project. It's really pretty simple, but there are a few things to do to make it work properly. While this article discusses Visual Studio 2010, it ca...
This article explains how to use sequence numbers in SQL Server, Azure SQL Database and Azure SQL Managed Instance. A sequence is a user-defined schema-bound object that generates a sequence of numeric values according to the specification with which the sequence was created....
(从 SqlSmoObject 继承。) IsObjectInitialized Verifies whether the object has been initialized. (从 SqlSmoObject 继承。) IsObjectInSpace Verifies whether the object is isolated or connected to the instance of SQL Server. (从 SqlSmoObject 继承。) Refresh Refreshes the objects and properties on ...
SQL> SELECT my_seq.currval FROM dual; SELECT my_seq.currval FROM dual * ERROR at line 1: ORA-08002: sequence MY_SEQ.CURRVAL is not yet defined in this session --使用nextval列,则成功执行,这就是NEXTVAL 必须在CURRVAL 之前指定,及第一次使用必须是NEXTVAL ...
Initialize(Boolean)Initializes the object and forces the properties be loaded. (繼承自SqlSmoObject。) IsObjectInitializedVerifies whether the object has been initialized. (繼承自SqlSmoObject。) IsObjectInSpaceVerifies whether the object is isolated or connected to the instance of SQL Server. (繼承自...
SqlParameter firstValueInRange = new SqlParameter("@range_first_value", SqlDbType.Variant); firstValueInRange.Direction = ParameterDirection.Output; cmd.Parameters.Add(firstValueInRange); conn.Open(); cmd.ExecuteNonQuery(); // Output the first value of the generated range. Console.WriteLine(first...
Transact-SQL 语法约定 语法 syntaxsql复制 CREATESEQUENCE[schema_name. ]sequence_name[AS[built_in_integer_type| user-defined_integer_type] ] [STARTWITH<constant>] [INCREMENTBY<constant>] [ {MINVALUE[<constant>] } | {NOMINVALUE} ] [ {MAXVALUE[<constant>] } | {NOMAXVALUE} ] [CYCLE| {...
If the Database Engine is stopped after you use 22 numbers, the next intended sequence number in memory (23) is written to the system tables, replacing the previously stored number. After SQL Server restarts and a sequence number is needed, the starting number is read from the system tables...