transactions {RMariaDB}R Documentation

DBMS Transaction Management

Description

Commits or roll backs the current transaction in an MariaDB connection. Note that in MariaDB DDL statements (e.g. CREATE TABLE) cannot be rolled back.

Usage

## S4 method for signature 'MariaDBConnection'
dbBegin(conn, ...)

## S4 method for signature 'MariaDBConnection'
dbCommit(conn, ...)

## S4 method for signature 'MariaDBConnection'
dbRollback(conn, ...)

Arguments

conn

a MariaDBConnection object, as produced by DBI::dbConnect().

...

Unused.

Examples

if (mariadbHasDefault()) {
con <- dbConnect(RMariaDB::MariaDB(), dbname = "test")
df <- data.frame(id = 1:5)

dbWriteTable(con, "df", df, temporary = TRUE)
dbBegin(con)
dbExecute(con, "UPDATE df SET id = id * 10")
dbGetQuery(con, "SELECT id FROM df")
dbRollback(con)

dbGetQuery(con, "SELECT id FROM df")

dbDisconnect(con)
}

[Package RMariaDB version 1.1.0 Index]