After creating or selecting a database, proceed to create a MySQL table. For example, to create a table named "employee" with two columns: "id" and "name", run the following statement: CREATE TABLE employee ( id INT AUTO_INCREMENT, name VARCHAR(50) NOT NULL, PRIMARY KEY(id) ) ENGINE...
WITH DATA:自动同步数据 WITH NO DATA:不自动同步数据。 如果不指定,默认为WITH DATA。 使用示例 将非分区表复制成一张新的非分区表。 准备一张源表和数据。 BEGIN; CREATE TABLE public.src_table ( "a" int8 NOT NULL, "b" text NOT NULL, PRIMARY KEY (a) ); CALL SET_TABLE_PROPERTY('public.sr...
However,OBJECT_DEFINITION, as well as its analoguesp_helptext, has a significant disadvantage; it does not allow the return script description for a table object. IF OBJECT_ID('dbo.Table1', 'U') IS NOT NULL DROP TABLE dbo.Table1 GO CREATE TABLE dbo.Table1 (ColumnID INT PRIMARY...
-- Create a new table. CREATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } ( { column_name <data_type> [ <column_options> ] } [ ,...n ] ) [ WITH ( <table_option> [ ,...n ] ) ] [;] <column_options> ::= [ COLLATE Windows_col...
Hologres的建表语法兼容PostgreSQL,通过CREATE TABLE语句创建表,具体语法如下。 说明 当前Hologres DDL支持多行事务,V2.0版本起支持多行DML混合事务。 V2.1版本起支持create table with property语法,简化设置表属性方法。 推荐优先使用CREATE TABLE WITH语法,针对特定场景,如频繁创建已存在的表(CREATE TABLE IF NOT EXIST...
In SQL Server, the FileTables feature uses a directory structure to store files. Learn how to create a new FileTable or alter or drop an existing FileTable.
(`id` ASC) VISIBLE, PRIMARY KEY (`id`), CONST...' at line 5 SQL Statement: CREATE TABLE `employee`.`phone` ( `id` INT NOT NULL AUTO_INCREMENT, `phone_number` VARCHAR(45) NULL, `employee_id` INT NULL, INDEX `fk_phone_1_idx` (`employee_id` ASC) VISIBLE, UNIQUE INDEX `id_...
下面的动态SQL示例创建表SQLUser.MyStudents。 注意,因为COMPUTECODE是ObjectScript代码,而不是SQL代码,ObjectScript$PIECE函数使用双引号分隔符; 因为这行代码本身是一个带引号的字符串,$PIECE分隔符必须通过加倍的方式转义为字面量,如下所示: ClassMethod CreateTable7() ...
[PRIMARYKEY][REFERENCEStable(reffield-commalist)][DEFAULT[(]default-spec[)]][ONUPDATEupdate-spec][COMPUTECODE{ObjectScript-code}[COMPUTEONCHANGE(field-commalist)|CALCULATED|TRANSIENT]]},}[{[CONSTRAINTuname]UNIQUE(field-commalist)}][[CONSTRAINTpkname]PRIMARYKEY(field-commalist)][{[CONSTRAINTfkname...
ScriptDom Microsoft.SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource AdHocTableReference AffinityKind Algori...