Schema

db_add_field db_create_index db_create_table db_describe_index db_describe_table db_drop_field db_drop_index db_drop_table db_fielddef_destroy db_fielddef_init db_indexdef_destroy db_indexdef_init db_indexdef_set_field db_indexdef_set_field_count db_indexdef_set_indextype db_indexfield_destroy db_indexfield_init db_tabledef_destroy db_tabledef_init db_tabledef_set_field db_tabledef_set_field_count db_tabledef_set_fields db_tabledef_set_index db_tabledef_set_index_count db_tabledef_set_indexes db_tabledef_set_tabletype

db_result_t db_add_field ( db_t  hdb, const db_objname_t *  table, const db_fielddef_t *  field_def   ) Add a field to an existing table. Parameters: hdb  Database handle. table  Table name. field_def  Field configuration. A field name must start with a letter and can be followed by one or more letters, numbers, or underscores. Returns: DB_OK when successful. DB_FAIL on failure. On failure, one of the following error codes is set: DB_EINVAL Caused by: invalid database handle, table is null, field configuration is null. DB_ENAME Invalid field name. DB_EBINDSIZE Invalid bind size. Datatype and size dont match. DB_ETABLE Table error. Field size=0. DB_EFIELD Caused by: invalid name, index field can not be blob type. DB_EDUPLICATEFIELDS Can not create duplicate fields. DB_EINDEX Index error. Two indexes are eqivalent. DB_ELOCKED Table is locked by cursor or concurrent transaction. DB_ETXSTATE A transaction is active. A table can only be altered or dropped when there is no active transaction. If a transaction has been started, db_commit_tx or db_abort_tx must be used before db_drop_table can be called. See also: db_rename_field, db_update_field, db_drop_field, get_db_error, clear_db_error, Error Handling