SQL SQL Server 使用英语阅读 通过 Facebookx.com 共享LinkedIn电子邮件 CREATE SEQUENCE (Transact-SQL) 2025/01/03 适用于: SQL Server Azure SQL 数据库 Azure SQL 托管实例 创建一个序列对象并指定其属性。 序列是用户定义的绑定到架构的对象,该对象可根据创建序列所依据的
您可以使用 sp_sequence_get_range 一次取得多個序號。如需使用 CREATE SEQUENCE 和NEXT VALUE FOR 函數的相關資訊和案例,請參閱 序號。Transact-SQL 語法慣例Syntaxsyntaxsql 複製 CREATE SEQUENCE [schema_name . ] sequence_name [ AS [ built_in_integer_type | user-defined_integer_type ]...
Informationen und Szenarien, in denen die CREATE SEQUENCE -Funktion und die NEXT VALUE FOR -Funktion verwendet werden, finden Sie unter Sequenznummern.Transact-SQL-SyntaxkonventionenSyntaxsyntaxsql Kopie CREATE SEQUENCE [schema_name . ] sequence_name [ AS [ built_in_integer_type | user-defined...
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...
循环SEQUENCE 从最小值或最大值(而不是从起始值)重新开始。 [ CACHE [<constant> ] | NO CACHE ] 通过最大限度地减少生成序列编号所需的磁盘 IO 数,可以提高使用序列对象的应用程序的性能。 默认值为 CACHE。 例如,如果选择的缓存大小为 50,SQL Server 并不会缓存 50 个单个值。 它只是缓存当前值和缓...
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 ta...
---自动增长跳至1001 https://stackoverflow.com/questions/17587094/identity-column-value-suddenly-jumps-to-1001-in-sql-server --1. 使用序列 (Sequence) https://docs.microsoft.com/zh-cn/sql/t-sql/statements/create-sequence-transact-sql?view=sql-server-ver15 ...
cache size of 50 is chosen, SQL Server does not keep 50 individual values cached. It only caches the current value and the number of values left in the cache. This means that the amount of memory required to store the cache is always two instances of the data type of the sequence ...
The CREATE SEQUENCE statement creates a sequence at the current server. Invocation This statement can be embedded in an application program or issued interactively. It is an executable statement that can be dynamically prepared only if DYNAMICRULES run behavior is implicitly or explicitly specified. ...
SEQUENCE_NUMBER BIGINT START:NOT NULLEND:NULL 適用於:SQL Server 2022 (16.x) 和更新版本,以及 Azure SQL Database。建立(START) 或刪除 (END) 資料列版本的作業序號。 在交易內,這個值是唯一的。 如果您嘗試指定不符合上述資料類型或可 Null 性需求的資料行,系統將會擲回錯誤。 如果您未明確指定可 NULL...