tomatoGeneChip_dbconn: Collect information about the package annotation DB
In kozo2/tomatoGeneChip.db: Chip style package for Solanum lycopersicum

Description Usage Arguments Details Value See Also Examples

Some convenience functions for getting a connection object to (or collecting information about) the package annotation DB.

  tomatoGeneChip_dbconn()
  tomatoGeneChip_dbfile()
  tomatoGeneChip_dbschema(file="", show.indices=FALSE)
  tomatoGeneChip_dbInfo()

`file`	A connection, or a character string naming the file to print to (see the `file` argument of the `cat` function for the details).
`show.indices`	The CREATE INDEX statements are not shown by default. Use `show.indices=TRUE` to get them.

tomatoGeneChip_dbconn returns a connection object to the package annotation DB. IMPORTANT: Don't call dbDisconnect on the connection object returned by tomatoGeneChip_dbconn or you will break all the AnnDbObj objects defined in this package!

tomatoGeneChip_dbfile returns the path (character string) to the package annotation DB (this is an SQLite file).

tomatoGeneChip_dbschema prints the schema definition of the package annotation DB.

tomatoGeneChip_dbInfo prints other information about the package annotation DB.

tomatoGeneChip_dbconn: a DBIConnection object representing an open connection to the package annotation DB.

tomatoGeneChip_dbfile: a character string with the path to the package annotation DB.

tomatoGeneChip_dbschema: none (invisible NULL).

tomatoGeneChip_dbInfo: none (invisible NULL).

dbGetQuery, dbConnect, dbconn, dbfile, dbschema, dbInfo

  ## Count the number of rows in the "genes" table:
  dbGetQuery(tomatoGeneChip_dbconn(), "SELECT COUNT(*) FROM genes")

  tomatoGeneChip_dbschema()

  tomatoGeneChip_dbInfo()