`show create table` equivalent in oracle sql

Question

In MySql you can see the table definition (columns with their data types etc) with show create table table_name.

Is there a similar functionality for oracle sql?

Answer 1

If you are asking about SQL*Plus commands (show create table table_name doesn't appear to be a SQL statement), you can use the desc command

SQL> desc emp  Name                                      Null?    Type  ----------------------------------------- -------- ----------------------------  EMPNO                                     NOT NULL NUMBER(4)  ENAME                                              VARCHAR2(10)  JOB                                                VARCHAR2(9)  MGR                                                NUMBER(4)  HIREDATE                                           DATE  SAL                                                NUMBER(7,2)  COMM                                               NUMBER(7,2)  DEPTNO                                             NUMBER(2) 

If you really want a SQL statement, you can use the dbms_metadata package

  1  select dbms_metadata.get_ddl( 'TABLE', 'EMP', 'SCOTT' )   2*   from dual SQL> /  DBMS_METADATA.GET_DDL('TABLE','EMP','SCOTT') --------------------------------------------------------------------------------    CREATE TABLE "SCOTT"."EMP"    (    "EMPNO" NUMBER(4,0),         "ENAME" VARCHAR2(10),         "JOB" VARCHAR2(9),         "MGR" NUMBER(4,0),         "HIREDATE" DATE,         "SAL" NUMBER(7,2),         "COMM" NUMBER(7,2),         "DEPTNO" NUMBER(2,0),          CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")   USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS   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 "USERS"   ALTER INDEX "SCOTT"."PK_EMP"  UNUSABLE ENABLE,          CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO")           REFERENCES "SCOTT"."DEPT" ("DEPTNO") 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 "USERS"   CACHE 

Depending on the tool you are using, you may need to run set long 10000 first, that tells SQL*Plus to display the first 10,000 bytes of any LOB that is selected. If your DDL is longer, set a larger value.