然后键入以下命令: mysql -uroot -p 密码< c:\school.sql 如果成功,空出一行无任何显示;如有错误,会有提示。(以上命令已经调试,你只要将//的注释去掉即可使用)。 四、表的相关操作 命令:create table <表名> ( <字段名> <类型> [,..<字段名n> <类型n>]); mysql> create table My...
创建一张空表: Sql="Create TABLE [表名]" 创建一张有字段的表: Sql="Create TABLE [表名]([字段名1] MEMO NOT NULL, [字段名2] MEMO, [字段名3] COUNTER NOT NULL, [字段名4] DATETIME, [字段名5] TEXT(200), [字段名6] TEXT(200)) 字段类型: 2 : "SmallInt", // 整型 3 : "Int",...
Here, the SQL command checks if a table namedCompaniesexists, and if not, it creates a table with specified columns. Create Table Using Another Existing Table In SQL, we can create a new table by duplicating an existing table's structure. Let's look at an example. -- create a backup t...
CREATETABLEpar_table(viewTimeINT,useridBIGINT,page_urlSTRING,referrer_urlSTRING,ipSTRINGCOMMENT'IP Address of the User')COMMENT'This is the page view table'PARTITIONEDBY(dateSTRING,posSTRING)CLUSTEREDBY(userid)SORTEDBY(viewTime)INTO32BUCKETSROWFORMATDELIMITED‘\t’FIELDSTERMINATEDBY'\n'STOREDASSEQUEN...
一、创建表:createtable 1.语法:CREATETABLE[用户名. ]表名 (列名数据类型[ default默认值] [约束条件][ , ...]) TABLESPACE表空间名 2.表名和列名命名规则: 必须以字母开头 必须在1–个字符之间 必须只能包含A–Z,a–z,0–,_,$,和# 必须不...
Tip:The empty "Persons" table can now be filled with data with the SQLINSERT INTOstatement. Create Table Using Another Table A copy of an existing table can also be created usingCREATE TABLE. The new table gets the same column definitions. All columns or specific columns can be selected. ...
CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name LIKE existing_table_or_view_name [LOCATION hdfs_path]; data_type : primitive_type | array_type | map_type | struct_type | union_type -- (Note: Available in Hive 0.7.0 and later) ...
(1) CREATE TABLE 创建一个指定名字的表。如果相同名字的表已经存在,则抛出异常,可使用 IF NOT EXISTS 选项来忽略这个异常; (2) TEMPORARY 表示是临时表,在当前会话内,这张表有效,当会话结束,则这张表失效。EXTERNAL 表示是外部表,在建表的同时指定一个指向实际数据的路径。删除的表的时候,只会删除元数据,不...
9 10 11 12 CREATETABLEPerson( PersonIDint, LastNamevarchar(255), FirstNamevarchar(255), Addressvarchar(255), Cityvarchar(255) ); INSERTINTOPersonVALUES(1,'Tom','Erichsen','Skagen 210, Stavanger 4006','Norway'); SELECT*FROMPerson;
The CREATE TABLE statement defines a table. The definition must include its name and the names and attributes of its columns. The definition can include other attributes of the table, such as its primary key and its table space. Invocation This statement can be embedded in an application ...