dbExistsTable {DBI}R Documentation

Does a table exist?


Returns if a table given by name exists in the database.


dbExistsTable(conn, name, ...)



A DBIConnection object, as returned by dbConnect().


The table name, passed on to dbQuoteIdentifier(). Options are:

  • a character string with the unquoted DBMS table name, e.g. "table_name",

  • a call to Id() with components to the fully qualified table name, e.g. Id(schema = "my_schema", table = "table_name")

  • a call to SQL() with the quoted and fully qualified table name given verbatim, e.g. SQL('"my_schema"."table_name"')


Other parameters passed on to methods.


dbExistsTable() returns a logical scalar, TRUE if the table or view specified by the name argument exists, FALSE otherwise.

This includes temporary tables if supported by the database.

Failure modes

An error is raised when calling this method for a closed or invalid connection. An error is also raised if name cannot be processed with dbQuoteIdentifier() or if this results in a non-scalar.


The name argument is processed as follows, to support databases that allow non-syntactic names for their objects:

For all tables listed by dbListTables(), dbExistsTable() returns TRUE.

See Also

Other DBIConnection generics: DBIConnection-class, dbAppendTable(), dbCreateTable(), dbDataType(), dbDisconnect(), dbExecute(), dbGetException(), dbGetInfo(), dbGetQuery(), dbIsReadOnly(), dbIsValid(), dbListFields(), dbListObjects(), dbListResults(), dbListTables(), dbReadTable(), dbRemoveTable(), dbSendQuery(), dbSendStatement(), dbWriteTable()


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

dbExistsTable(con, "iris")
dbWriteTable(con, "iris", iris)
dbExistsTable(con, "iris")


[Package DBI version 1.1.2 Index]