How to write an R Data Frame to an SQL Table
Read OriginalThis technical article explains a method for writing an R data frame directly to a temporary SQL table using the `dbWriteTable` function. It demonstrates how to efficiently query a database for a subset of data (e.g., stock prices for specific tickers) by creating a temp table from an R data frame and performing a JOIN, avoiding inefficient bulk data retrieval. The example uses RPostgreSQL but is applicable to other SQL variants.
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