transactions | R Documentation |
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.
## S4 method for signature 'MariaDBConnection'
dbBegin(conn, ...)
## S4 method for signature 'MariaDBConnection'
dbCommit(conn, ...)
## S4 method for signature 'MariaDBConnection'
dbRollback(conn, ...)
conn |
a MariaDBConnection object, as produced by
|
... |
Unused. |
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)
}
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