DBI (version 0.5-1)

dbGetQuery: Send query, retrieve results and then clear result set

Description

dbGetQuery comes with a default implementation that calls dbSendQuery, then dbFetch, ensuring that the result is always free-d by dbClearResult.

Usage

dbGetQuery(conn, statement, ...)

Arguments

conn

A DBIConnection object, as produced by dbConnect.

statement

a character vector of length 1 containing SQL.

...

Other parameters passed on to methods.

Implementation notes

Subclasses should override this method only if they provide some sort of performance optimisation.

Details

This function is for SELECT queries only. Some backends may support data manipulation statements through this function for compatibility reasons. However callers are strongly advised to use dbExecute for data manipulation statements.

See Also

For updates: dbSendStatement and dbExecute.

Other DBIConnection generics: DBIConnection-class, dbDataType, dbDisconnect, dbExecute, dbExistsTable, dbGetException, dbGetInfo, dbIsValid, dbListFields, dbListResults, dbListTables, dbReadTable, dbRemoveTable, dbSendQuery, dbSendStatement

Examples

con <- dbConnect(RSQLite::SQLite(), ":memory:")

dbWriteTable(con, "mtcars", mtcars)
dbGetQuery(con, "SELECT * FROM mtcars")

dbDisconnect(con)