使用 sqlcmd 连接到 Azure Synapse Analytics 中的 SQL 池Connect to SQL pool in Azure Synapse Analytics with sqlcmd

• 01/11/2021
• • W

使用 [sqlcmd][sqlcmd] 命令行实用程序连接并查询 SQL 池。Use the [sqlcmd][sqlcmd] command-line utility to connect to and query a SQL pool.

1.连接1. Connect

若要开始使用 [sqlcmd][sqlcmd]，请打开命令提示符并输入“sqlcmd”，后跟 SQL 池的连接字符串。To get started with [sqlcmd][sqlcmd], open the command prompt and enter sqlcmd followed by the connection string for your SQL pool. 连接字符串需要以下参数：The connection string requires the following parameters:

• 服务器 (-S)： 采用 <服务器名称>.database.chinacloudapi.cn 格式的服务器Server (-S): Server in the form <Server Name>.database.chinacloudapi.cn
• 数据库 (-d)： SQL 池名称。Database (-d): SQL pool name.
• 启用带引号的标识符 (-I)： 必须启用带引号的标识符才能连接到 SQL 池实例。Enable Quoted Identifiers (-I): Quoted identifiers must be enabled to connect to a SQL pool instance.

若要使用 SQL Server 身份验证，需添加用户名/密码参数：To use SQL Server Authentication, you need to add the username/password parameters:

• 用户 (-U)： 采用 <User> 格式的服务器用户User (-U): Server user in the form <User>
• 密码 (-P)： 与用户关联的密码。Password (-P): Password associated with the user.

例如，连接字符串可能如下所示：For example, your connection string might look like the following:

C:\>sqlcmd -S MySqlDw.database.chinacloudapi.cn -d Adventure_Works -U myuser -P myP@ssword -I

若要使用 Azure Active Directory 集成身份验证，需添加 Azure Active Directory 参数：To use Azure Active Directory Integrated authentication, you need to add the Azure Active Directory parameters:

• Azure Active Directory 身份验证 (-G)：使用 Azure Active Directory 进行身份验证 Azure Active Directory Authentication (-G): use Azure Active Directory for authentication

例如，连接字符串可能如下所示：For example, your connection string might look like the following:

C:\>sqlcmd -S MySqlDw.database.chinacloudapi.cn -d Adventure_Works -G -I

2.查询2. Query

连接后，可以对实例发出任何支持的 Transact-SQL 语句。After connection, you can issue any supported Transact-SQL statements against the instance. 在此示例中，查询以交互模式进行提交。In this example, queries are submitted in interactive mode.

C:\>sqlcmd -S MySqlDw.database.chinacloudapi.cn -d Adventure_Works -U myuser -P myP@ssword -I
1> SELECT name FROM sys.tables;
2> GO
3> QUIT

后续示例演示如何通过使用 -Q 选项或将 SQL 输送到 sqlcmd 从而在批处理模式下运行查询。These next examples show how you can run your queries in batch mode using the -Q option or piping your SQL to sqlcmd.

sqlcmd -S MySqlDw.database.chinacloudapi.cn -d Adventure_Works -U myuser -P myP@ssword -I -Q "SELECT name FROM sys.tables;"

"SELECT name FROM sys.tables;" | sqlcmd -S MySqlDw.database.chinacloudapi.cn -d Adventure_Works -U myuser -P myP@ssword -I > .\tables.out

后续步骤Next steps

有关 sqlcmd 中可用选项的详细信息，请参阅 sqlcmd 文档。For more about details about the options available in sqlcmd, see sqlcmd documentation.