DATAGUARD Using DBCA Silent Mode Is Not Setting DB_UNIQUE_NAME

Unfortunately, db_name=db_unique_name which is not ideal for Data Guard environment.

Even without Data Guard, my preference is to have db_name different from db_unique_name.

Typically, I like to append letter to db_name vs using number which can be confused with RAC instance.

Another option is using airport code; however, this will be inaccurate when database is migrated to new DC.

If I can help it, then I would like implementation to be robust.

To resolve the issue, add -initparams db_unique_name=${NODE1_DB_UNIQUE_NAME} to dbca.

dbca -silent -createDatabase                                                 \
  -responseFile NO_VALUE                                                     \
  -templateName General_Purpose.dbc                                          \
  -sid ${ORACLE_SID}                                                         \
  -gdbname ${ORACLE_SID}                                                     \
  -characterSet AL32UTF8                                                     \
  -sysPassword ${SYS_PASSWORD}                                               \
  -systemPassword ${SYS_PASSWORD}                                            \
  -createAsContainerDatabase false                                           \
  -databaseType MULTIPURPOSE                                                 \
  -automaticMemoryManagement false                                           \
  -totalMemory 2048                                                          \
  -storageType FS                                                            \
  -datafileDestination "${DATA_DIR}"                                         \
  -redoLogFileSize 50                                                        \
  -emConfiguration NONE                                                      \
  -sampleSchema false                                                        \
  -initparams db_unique_name=${NODE1_DB_UNIQUE_NAME}                         \
  -ignorePreReqs

set lines 100
column NAME_COL_PLUS_SHOW_PARAM format a30
column VALUE_COL_PLUS_SHOW_PARAM format a55

SQL> set lines 100
SQL> column NAME_COL_PLUS_SHOW_PARAM format a30
SQL> column VALUE_COL_PLUS_SHOW_PARAM format a55

SQL> show parameter db%name

NAME                           TYPE        VALUE
------------------------------ ----------- -------------------------------------------------------
db_file_name_convert           string
db_name                        string      hawk
db_unique_name                 string      hawka
pdb_file_name_convert          string

SQL> show parameter create%dest

NAME                           TYPE        VALUE
------------------------------ ----------- -------------------------------------------------------
db_create_file_dest            string      /u01/oradata
db_create_online_log_dest_1    string      /u01/oradata
db_create_online_log_dest_2    string
db_create_online_log_dest_3    string
db_create_online_log_dest_4    string
db_create_online_log_dest_5    string

SQL> show parameter dump_dest

NAME                           TYPE        VALUE
------------------------------ ----------- -------------------------------------------------------
background_dump_dest           string      /u01/app/oracle/product/12.1.0.2/dbhome_1/rdbms/log
core_dump_dest                 string      /u01/app/oracle/diag/rdbms/hawka/hawk/cdump
user_dump_dest                 string      /u01/app/oracle/product/12.1.0.2/dbhome_1/rdbms/log
SQL>