SQL Cóipeáil CREATE TABLE [Production].[TransactionHistoryArchive1] ( TransactionID INT IDENTITY(1, 1) NOT NULL, CONSTRAINT PK_TransactionHistoryArchive1_TransactionID PRIMARY KEY CLUSTERED (TransactionID) );
= column_set_name XML COLUMN_SET FOR ALL_SPARSE_COLUMNS <table_constraint> ::= [ CONSTRAINT constraint_name ] { { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] ( column_name [ ASC | DESC ] [ ,... n ] ) [ WITH FILLFACTOR = fillfactor | WITH ( <index_option> [ ,... ...
{ PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] [ WITH FILLFACTOR = fillfactor | WITH ( <index_option> [ ,... n ] ) ] [ ON { partition_scheme_name ( partition_column_name ) | filegroup | "default" } ] | [ FOREIGN KEY ] REFERENCES referenced_table_name [ ( ref_column ...
在CREATE TABLE 语句中,可只为一个约束指定 CLUSTERED。如果在为 UNIQUE 约束指定 CLUSTERED 的同时又指定了 PRIMARY KEY 约束,则 PRIMARY KEY 将默认为 NONCLUSTERED。 FOREIGN KEY REFERENCES 为列中的数据提供引用完整性的约束。FOREIGN KEY 约束要求列中的每个值都存在于所引用的表的对应被引用列中。FOREIGN KEY...
To create a table with a primary key, we can write the following command. In MySQL CREATETABLECompanies (idint,namevarchar(50), addresstext, emailvarchar(50), phonevarchar(10), PRIMARYKEY(id) ); In Oracle and SQL Server CREATETABLECompanies (idintNOTNULLPRIMARYKEY,namevarchar(50), ...
CREATE TABLE 中指定的表的存储机制以后不能进行更改。 ON {<partition_scheme> | filegroup | “default”} 也可在 PRIMARY KEY 约束或 UNIQUE 约束中指定。这些约束会创建索引。如果指定了 filegroup,则索引将存储在命名的文件组中。如果指定了 "default",或者根本未指定 ON,则索引将与表存储在同一文件组中。
Applies to: SQL Server 2016 (13.x) and later Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric You can create a new table, name it, and add it to an existing database, by using the table designer in ...
syntaxsql 複製 CREATE VIEW [ schema_name . ] view_name [ ( column_name [ ,...n ] ) ] AS <select_statement> [;] <select_statement> ::= [ WITH <common_table_expression> [ ,...n ] ] SELECT <select_criteria> Microsoft網狀架構數據倉儲和 SQL 分析端點的語法。 syntaxsql 複製 CR...
syntaxsql 複製 CREATE CLUSTERED COLUMNSTORE INDEX index_name ON [ database_name . [ schema ] . | schema . ] table_name [ORDER (column[,...n])] [WITH ( DROP_EXISTING = { ON | OFF } )] [;] CREATE [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON [ database_name . [ schema...
CREATE TABLE 陳述式定義表格。 定義必須包含其名稱及其直欄的名稱和屬性。 定義可以包括表格的其他屬性,例如其主要索引鍵或核對限制項。 若要建立所建立的暫存表格,請使用 CREATE GLOBAL TEMPORARY TABLE 陳述式。 若要宣告所宣告的暫存表格,請使用 DECLARE GLOBAL TEMPORARY TABLE 陳述式。