SQRL-package | R Documentation |
Streamlines interactive exploratory work, and short-order ad hoc jobs, on ODBC data sources.
Automatically generates a dedicated and like-named interface function to each ODBC DSN (Open DataBase Connectivity Data Source Name). These functions manage communications behind the scenes, whilst supporting multi-statement SQL scripts. Hybrid (SQRL) scripting syntax allows SQL with embedded R, thereby enabling parameterisation of queries, feedback of intermediate results, the addition of flow-control structures within and around SQL, and the use of libraries of stored scripts. Additional sources and interfaces can be defined at any time. The package is a wrapper about RODBC.
Mike Lee
sqrlSources
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sqrlUsage
require(SQRL) # Show (automatic) data sources. sqrlSources() ## Not run: # If 'ratatoskr' were one of those sources (i.e., # if a DSN of that name was found), then a multi- # statement query could be submitted like so: ratatoskr("use yggdrasil; select messages from ", "vedfolnir where addressee = 'nidhogg' ", "limit ", 5) # Submit a parameterised query from file. ratatoskr("messages.sqrl", year = 950) # Obtain help on usage. ratatoskr("help") ## End(Not run) # Define a new data source (interface). sqrlSource("mysource", driver = "MYSQL ODBC 5.3 ANSI Driver", server = "localhost", user = "<uid>", password = "<pwd>") ## Not run: # Submit a query to the new source. mysource("select * from database.table") ## End(Not run)
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