在Teradata 中,CREATE TABLE 语句用于创建一个新的表。其基本格式如下: sql CREATE TABLE table_name ( column1 datatype [constraint], column2 datatype [constraint], ... [PRIMARY KEY (column1, column2, ...)], [UNIQUE (column1, column2, ...)], [FOREIGN KEY (column1, column2, ...) ...
( LOCATION = teradata://<serveraddress>[:<port>],-- PUSHDOWN = ON | OFF,CREDENTIAL =credential_name );/* LOCATION: Teradata table/view in '<database_name>.<object_name>' format * DATA_SOURCE: the external data source, created above. */CREATEEXTERNALTABLEcustomer( L_ORDERKEYINTNOTNULL,...
Creates a new empty table in the current database.This table is owned by the user who executes the command. However, if the system administrator creates a table in the sc
CREATE TABLE PARTITION creates a partitioned table. Partitioned table: refers to splitting what is logically one large table into smaller physical pieces based on specifi
>CREATETABLEstudent(idINT,name STRING,ageINT); -- Use data from another table >CREATETABLEstudent_copyASSELECT*FROMstudent; -- Creates a CSV table from an external directory >CREATETABLEstudentUSINGCSV LOCATION'/path/to/csv_files'; -- Specify table comment and properties ...
-- Creates a Delta table>CREATETABLEstudent (idINT,nameSTRING, ageINT);-- Use data from another table>CREATETABLEstudent_copyASSELECT*FROMstudent;-- Creates a CSV table from an external directory>CREATETABLEstudentUSINGCSV LOCATION'/path/to/csv_files';-- Specify table comment and proper...
Insert huge data from one table to another table in batches Insert images into image datatype using SQL INSERT INTO as SELECT with ORDER BY insert into does not insert in order? INSERT INTO in batches Insert into table from another stored procedure does not work when stored procedure has time...
IBM JR20264: TERADATA WRAPPER NEEDS TO HAVE UPDATE AUTHORITY ON THE TABLE OTH ERWISE CREATE NICKNAME WILL FAIL - United StatesIbm Corporation
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华为云计算 云知识 E-R方法中的联系 E-R方法中的联系 时间:2021-06-02 10:17:41 数据库 大多数场合下面,数据模型里面关心的是实体之间的联系。E-R方法中,用“联系”描述实体内部以及实体之间的联系。在概念模型中一般使用菱形框表示联系。 文中课程 更多精彩课 ...