Afterward, if we want to rename the database University to University1, we execute the following query: # ALTER DATABASE University RENAME TO University1; ALTER DATABASE 4. In MySQL In MySQL, there’s no direct support for renaming a database through ALTER DATABASE or RENAME DATABASE. Inst...
使用以下代码来执行重命名SQL语句: # 执行重命名SQL语句cursor=cnx.cursor()rename_query="ALTER DATABASE your_database_name RENAME TO new_database_name"cursor.execute(rename_query) 1. 2. 3. 4. 这段代码使用ALTER DATABASE语句来执行重命名操作,将your_database_name替换为要重命名的数据库名称,将new...
Applies to: SQL Server 2012 (11.x) and later. Designates that the current database in use should be altered. MODIFY NAME = new_database_name Renames the database with the name specified asnew_database_name. COLLATEcollation_name
After the rename, this example places the database back in multi-user mode. Connect to the master database for your instance. Open a query window. Copy and paste the following example into the query window and select Execute. This example changes the name of the MyTestDatabase database to...
mysql>rename table test to test1;QueryOK,0rowsaffected(0.08sec) 3、再次查看一下结果。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 mysql>show tables;+---+|Tables_in_cainiao|+---+|test1||test2|+---+2rowsinset(0.00sec)
Then, to implement that plan, e.g. the JDBC integration will convert an optimized RelNode back into a SqlNode and then a query string to be executed against some database over JDBC. The Spark implementation will convert RelNodes into operations on a Spark RDD. The Cassandra implementation wil...
In Object Explorer, connect to an instance of Database Engine. On the Standard bar, select New Query. The following example renames the SalesTerritory table to SalesTerr in the Sales schema. Copy and paste the following example into the query window and select Execute. SQL Kopioi USE ...
复习下SQL 最近复习SQL,发现好多东西已经忘了,好记性不如烂笔头真乃至理名言, sql:结构化查询语言(structed query language) 1.创建一个数据库 CREATEDATABASEmy_data_base; 2.使用刚刚创建的库 USEmy_data_base; 3.创建一个名为teacher的表格 CREATETABLEteacher...
To rename the “employee” table to “person” in the dbo schema: EXEC sp_rename 'dbo.employee' 'person'; The table will then be updated. A query like this will select the data from the updated table: SELECT * FROM person; Oracle SQL Rename Table To rename a table in Oracle SQL, ...
SQL是结构化查询语言(Structured Query Language)的缩写,尽管它被称为查询语言,但其功能包括数据查询、数据定义、数据操纵和数据控制四部分。SQL简洁方便、功能齐全,是目前应用最广的关系数据库语言。本章主要介绍SQL的使用和SQL Server 2008 R2数据库管理系统的主要功能。通过本章的学习,读者应了解SQL的特点,掌握SQL...