- connect: connects to a database
  - disconnect: logs off but does not exit
  - exit: exists

/ as sysdba

SQL> create user johny identified by 1234;

SQL> select username from dba_users;

ERROR:
ORA-01045: user JOHNY lacks CREATE SESSION privilege; logon denied

SQL> grant create session to johny;

username: johny
password: 1234

SQL> drop user johny;

SQL> select tablespace_name from dba_tablespaces;

SQL> create tablespace johny_tabspace
  2  datafile 'johny_tabspace.dat'
  3  size 10M autoextend on;

SQL> create temporary tablespace johny_tabspace_temp
  2  tempfile 'johny_tabspace_temp.dat'
  3  size 5M autoextend on;

SQL> create user johny
  2  identified by 1234
  3  default tablespace johny_tabspace
  4  temporary tablespace johny_tabspace_temp;

SQL> grant create session to johny;
SQL> grant create table to johny;
SQL> grant unlimited tablespace to johny;

SQL> select * from session_privs;

PRIVILEGE
----------------------------------------
CREATE SESSION
UNLIMITED TABLESPACE
CREATE TABLE

SQL> create table johny_table
  2  (
  3     id int not null,
  4     text varchar2(1000),
  5     primary key (id)
  6  );

SQL> insert into johny_table (id, text)
  2  values (1, 'This is some text.');

SQL> select * from johny_table;

ID  TEXT
--------------------------
1   This is some text.

SQL> set pagesize 0
SQL> set long 90000
SQL> set feedback off
SQL> set echo off
SQL> SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name) FROM USER_TABLES u;

CREATE TABLE "JOHNY"."JOHNY_TABLE"
   (    "ID" NUMBER(*,0) NOT NULL ENABLE,
        "TEXT" VARCHAR2(1000),
         PRIMARY KEY ("ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "JOHNY_TABSPACE"  ENABLE
   ) SEGMENT CREATION IMMEDIATE
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "JOHNY_TABSPACE"

SQL> set pagesize 0
SQL> set long 90000
SQL> set feedback off
SQL> set echo off
SQL> SELECT DBMS_METADATA.GET_DDL('INDEX',u.index_name) FROM USER_INDEXES u;

CREATE UNIQUE INDEX "JOHNY"."SYS_C0013353" ON "JOHNY"."JOHNY_TABLE" ("ID")
  PCTFREE 10 INITRANS 2 MAXTRANS 255
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "JOHNY_TABSPACE"

SQL> select Username from dba_users
  2  ;

USERNAME
------------------------------
SYS
SYSTEM
ANONYMOUS
APEX_PUBLIC_USER
FLOWS_FILES
APEX_040000
OUTLN
DIP
ORACLE_OCM
XS$NULL
MDSYS

USERNAME
------------------------------
CTXSYS
DBSNMP
XDB
APPQOSSYS
HR

16 rows selected.

SQL> create user testdb identified by password;

User created.

SQL> select username from dba_users;

USERNAME
------------------------------
TESTDB
SYS
SYSTEM
ANONYMOUS
APEX_PUBLIC_USER
FLOWS_FILES
APEX_040000
OUTLN
DIP
ORACLE_OCM
XS$NULL

USERNAME
------------------------------
MDSYS
CTXSYS
DBSNMP
XDB
APPQOSSYS
HR

17 rows selected.

SQL> grant create session to testdb;

Grant succeeded.

SQL> create tablespace testdb_tablespace
  2  datafile 'testdb_tabspace.dat'
  3  size 10M autoextend on;

Tablespace created.

SQL> create temporary tablespace testdb_tablespace_temp
  2  tempfile 'testdb_tabspace_temp.dat'
  3  size 5M autoextend on;

Tablespace created.

SQL> drop user testdb;

User dropped.

SQL> create user testdb
  2  identified by password
  3  default tablespace testdb_tablespace
  4  temporary tablespace testdb_tablespace_temp;

User created.

SQL> grant create session to testdb;

Grant succeeded.

SQL> grant create table to testdb;

Grant succeeded.

SQL> grant unlimited tablespace to testdb;

Grant succeeded.

SQL>

CREATE USER auto_exchange IDENTIFIED BY 123456;
GRANT RESOURCE TO auto_exchange;
GRANT CONNECT TO auto_exchange;
GRANT CREATE VIEW TO auto_exchange;
GRANT CREATE SESSION TO auto_exchange;
GRANT UNLIMITED TABLESPACE TO auto_exchange;