How to create a database in mysql
Apr 14, 2024 pm 07:15 PMTo build a MySQL database, you need to connect to the server, create a database, select a database, create a table, insert data, and query data. Specific steps include: connect to the server and use the CREATE DATABASE statement to create a database; use the USE statement to select a database; use the CREATE TABLE statement to create a table; use the INSERT statement to insert data; use the SELECT statement to query data.
How to create a MySQL database
To create a MySQL database, you need to use the following steps:
1. Connect to the MySQL server
Use a MySQL client tool (such as MySQL Workbench or command line) to connect to the MySQL server. Log in using your username and password.
2. Create a database
Use the CREATE DATABASE
statement to create a database. Database names must start with a letter and can contain up to 64 letters, numbers, underscores, or dollar signs.
CREATE DATABASE [数据库名称];
3. Select the database
Use the USE
statement to select the newly created database. This sets it as the current working database and allows you to perform operations on it.
USE [数据库名称];
4. Create a table
Use the CREATE TABLE
statement to create a table in the database. A table is a structured container for storing data, containing multiple columns, each column storing a specific type of data.
CREATE TABLE [表名称] ( [列名称1] [数据类型1], [列名称2] [数据类型2], ... [列名称N] [数据类型N] );
5. Insert data
Use the INSERT
statement to insert data into the table. The data value must match the column's data type.
INSERT INTO [表名称] ( [列名称1], [列名称2], ... [列名称N] ) VALUES ( [值1], [值2], ... [值N] );
6. Query data
Use the SELECT
statement to query the data in the database. You can filter, sort, and limit the set of results returned.
SELECT * FROM [表名称] WHERE [条件];
By following these steps, you can successfully set up a database in MySQL and perform basic operations.
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