Executes operating system commands. To execute an operating system command, start a line with two exclamation marks (!!) followed by the operating system command. For example:text Copy :!! dir Note The command is executed on the computer on which sqlcmd is running....
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 ...
Oracle Database Sample Schemasfor information about theHRsample schema that is used for examples in this chapter What is SQL Commands? You can use SQL Commands to create, edit, view, run, and delete SQL commands. A SQL command can contain SQL statements or PL/SQL blocks. ...
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Hive是一个数据仓库基础的应用工具,在Hadoop中用来处理结构化数据,它架构在Hadoop之上,通过SQL来对数据进行操作,了解SQL的人,学起来毫不费力。 Hive 查询操作过程严格遵守HadoopMapReduce的作业执行模型,Hive 将用户的Hive SQL 语句通过解释器转换为MapReduce 作业提交到Hadoop 集群上,Hadoop 监控作业执行过程,然后返回作...
BeginExecuteNonQueryInitiates the asynchronous execution of the Transact-SQL statement or stored procedure that is described by thisSqlCommand, generally executing commands such as INSERT, DELETE, UPDATE, and SET statements. Each call toBeginExecuteNonQuerymust be paired with a call toEndExecuteNonQuery, wh...
Because this overload does not support a callback procedure, developers must either poll to determine whether the command has completed, using the IsCompleted property of the IAsyncResult returned by the BeginExecuteNonQuery method; or wait for the completion of one or more commands using the Async...
For example, you can create a user calledmigrationswith the minimum required privileges required to migrate a database by using the following commands: CREATE USER migrations IDENTIFIED BYpasswordDEFAULT TABLESPACE users TEMPORARY TABLESPACE temp; GRANT CONNECT, RESOURCE, CREATE VIEW, CREATE PUBLIC SYNONY...
Then, create patch2.sql file with the following commands (NOTE: the commit; is important): patch2.sql 1 2 3 delete from cru_reply r where cru_reply_id in (select distinct cru_reply_id from cru_reply group by cru_reply_id havin...
SQL commands that run stored procedures can also use parameter mapping. The rules for how to use parameter markers and parameter names depends on the type of connection manager that the Execute SQL uses, just like the rules for parameterized queries. The following table lists examples of the EXE...