DataSourceNames[] returns a list of the names of data sources made available through DatabaseResourcesPath.
JDBCDriverNames[] returns a list of the names of databases for which JDBC drivers are available through DatabaseResourcesPath.
JDBC
(DatabaseLink Symbol) JDBC[arg, ...] is an object that holds parameters for making a JDBC connection to a database.
SQLBeginTransaction[conn] initiates an SQL transaction.
SQLCommitTransaction[conn] commits an SQL transaction.
SQLConnections[] returns a list of the open SQLConnection objects.
SQLDataTypeNames[conn] returns the names of data types that can be stored in an SQL connection.
SQLDropTable[conn, table] drops a table in an SQL connection.
SQLExpr[expr] allows a Mathematica expression to be stored in a database.
SQLMemberQ[data, column] specifies a condition in an SQL query used to test whether an element of a list matches the value of a column.