Get the first records of each object data tables
# S3 method for chMDB
heads(x, ..., n = 6L)# S3 method for fileMDB
heads(x, ..., n = 6L)
heads(x, ..., n = 6L)
# S3 method for memoMDB
heads(x, ..., n = 6L)
# S3 method for metaMDB
heads(x, ..., n = 6L)
A list of dplyr::tibble and matrix
an object with embedded data tables
the name of the tables to get (default: all of them)
maximum number of records to return (default: 6)