InvokeSqlcmd

InvokeSqlcmd refers to a wrapper, function, or script designed to invoke the sqlcmd command-line utility in order to execute Transact-SQL statements against Microsoft SQL Server. It is commonly used in SQL Server administration and data integration tasks to run queries, scripts, or batches from higher-level scripting environments such as PowerShell or batch files. Implementations vary, but they typically provide a simplified interface over sqlcmd.exe and its switches, allowing repeated use in automation workflows.

Typical features include establishing a connection to a server, selecting a database, and executing either inline queries or whole scripts. Common parameters mirror those of sqlcmd, such as server (-S), database (-d), input query (-Q), input file (-i), and output file (-o). Authentication options often include SQL Server login credentials (-U and -P) or Windows Integrated Authentication (-E). Many versions add conveniences like error handling, return code propagation, and built-in logging or result capturing to aid in automation and monitoring.

Usage patterns generally involve constructing a command line or function call that delegates to sqlcmd, then processing the resulting output and exit status within the calling script. This approach enables consistent, repeatable database operations across development, testing, and production environments, while isolating call sites from direct sqlcmd syntax.

Limitations include dependence on the sqlcmd tool being present on the system, potential security considerations for credential handling, and variations in implementation across environments. See also sqlcmd, Invoke-Sqlcmd, SQL Server client tools, and related PowerShell modules for SQL Server for alternative methods of executing T-SQL from scripts.