4. create database intrepid_detectives; // 创建新的database 5. use intrepid_detectives; // 开始使用新创的那个数据库 database stores their data in tables.数据库将数据保存在table中,一个database可以有多张表,就像一个execel spreadsheet可以有多个sheet一样的概念。 6. show tables; mysql>useintrepid_...
DDL, which stands for Data Definition Language, is a subset of SQL (Structured Query Language) commands used to define and modify the database structure. These commands are used to create, alter, and delete database objects like tables, indexes, and schemas. The primary DDL commands in SQL ...
命令创建数据库使用“create database”,创建前要确保用户具有创建数据库的权限。语法格式:CREATE DATABASE database_name [ ON /*指定数据库文件和文件组属性*/ [ PRIMARY] [ <filespec> [ , ... n ] ] [ , <filegroup> [ , 创建数据库 Create database 数据库 排序规则 日志文件 转载 kekenai 11...
--创建数据库/SCHEMA,表,视图,函数,索引CREATEDATABASE/SCHEMA,TABLE,VIEW,FUNCTION,INDEX--删除数据库/SCHEMA,表,视图,索引DROPDATABASE/SCHEMA,TABLE,VIEW,INDEX--清空表TRUNCATETABLE--修改数据库/SCHEMA,表,视图ALTERDATABASE/SCHEMA,TABLE,VIEW--修复表,分区MSCKREPAIRTABLE(orALTERTABLERECOVERPARTITIONS)--显示数...
11.moving data files:alter database sql> alter database rename file 'c:oracleoradataapp_data.dbf' to 'c:oracleapp_data.dbf'; 第三章:表 1.create a table sql> create table table_name (column datatype,column datatype]...) sql> tablespace tablespace_name [pctfree integer] [pctused integ...
Commands: completion Generate the autocompletion script for the specified shell config Modify sqlconfig files using subcommands like "sqlcmd config use-context mssql" create Install/Create SQL Server, Azure SQL, and Tools delete Uninstall/Delete the current context help Help about any command open ...
CREATEDATABASEname; 显示命令: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 show tables;show databases;show partitions;show functions;describe extended table_name dot col_name; DDL(Data Defination Language):数据库定义语言 建表: 代码语言:javascript ...
Importing to a database in elastic pool isn't supported through the Azure Portal, Azure PowerShell, or Azure CLI. Instead, create a database in the elastic pool and then use SQLPackage Import, or import data using any method into a single database and then move the database to an ...
CREATE TABLE Customer (MyField i AUTOINC NEXTVALUE 1 STEP 1, name c(40) ) See AlsoReferenceCREATE Command CREATE QUERY Command INSERT - SQL Command MODIFY QUERY Command MODIFY STRUCTURE Command OPEN DATABASE Command SELECT - SQL Command SET NOCPTRANS Command SQL Commands and FunctionsConcepts...
This section provides information on how to use SQL Commands to create, edit, view, run, and delete SQL commands. This section contains the following topics: See Also: Oracle Database SQL Language Referencefor detailed information about SQL statements and other parts of SQL, such as operators,...