15.7 SQL errors

All errors generated by the SQL interface are of type sql-error . Subtypes of sql-error are:

sql-reader-error

Generated by the symbolic SQL interface.

sql-database-error

Generated when the underlying database signals an error.

sql-type-coercion-error

Generated when type coercion of the data from the underlying database causes an error.

sql-type-check-error

Generated when type checking in the SQL interface causes an error.