`show create table` equivalent in oracle sql - 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.

Answer 2

Use DESC:
DESC mytable
Will show you the columns, but unfortunately the create statement is not available using standard oracle tools.

Answer 3

SQL> set long 1000
SQL> set pagesize 0
SQL> select DBMS_METADATA.GET_DDL('TABLE','TABLE NAME'[,'SCHEMA']) from DUAL

Answer 4

If you are using PL/SQL Developer; Right click on table, Select View, at the right bottom of the view window click on 'View SQL' button.

Answer 5

Just a note that table name is case_sensitive, you need to pass in table name as upper case.

Answer 6

DDL is working for me and more simple all you need is to write DDL (SCHEMA_OWNER).(TABLE_NAME) ...for example ddl HR.LOCATIONS;....HR is the schema and LOCATION is table name ...make sure you write both the SCHEMA name and table NAME in capital here the output will be
CREATE TABLE "HR"."LOCATIONS"
( "LOCATION_ID" NUMBER(4,0),
"STREET_ADDRESS" VARCHAR2(40),
"POSTAL_CODE" VARCHAR2(12),
"CITY" VARCHAR2(30) CONSTRAINT "LOC_CITY_NN" NOT NULL ENABLE,
"STATE_PROVINCE" VARCHAR2(25),
"COUNTRY_ID" CHAR(2),
CONSTRAINT "LOC_ID_PK" PRIMARY KEY ("LOCATION_ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 NOLOGGING COMPUTE
STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT
FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "EXAMPLE" ENABLE,
CONSTRAINT "LOC_C_ID_FK" FOREIGN KEY ("COUNTRY_ID")
REFERENCES "HR"."COUNTRIES" ("COUNTRY_ID") ENABLE
) SEGMENT CREATION IMMEDIATE
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT
FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "EXAMPLE" ;
COMMENT ON COLUMN "HR"."LOCATIONS"."LOCATION_ID" IS 'Primary key of
locations table';
COMMENT ON COLUMN "HR"."LOCATIONS"."STREET_ADDRESS" IS 'Street address
of an office, warehouse, or production site of a company.
Contains building number and street name';
COMMENT ON COLUMN "HR"."LOCATIONS"."POSTAL_CODE" IS 'Postal code of
the
location of an office, warehouse, or production site
of a company. ';
COMMENT ON COLUMN "HR"."LOCATIONS"."CITY" IS 'A not null column that
shows city where an office, warehouse, or
production site of a company is located. ';
COMMENT ON COLUMN "HR"."LOCATIONS"."STATE_PROVINCE" IS 'State or
Province where an office, warehouse, or production site of a
company is located.';
COMMENT ON COLUMN "HR"."LOCATIONS"."COUNTRY_ID" IS 'Country where an
office, warehouse, or production site of a company is
located. Foreign key to country_id column of the countries table.';
COMMENT ON TABLE "HR"."LOCATIONS" IS 'Locations table that contains
specific address of a specific office,
warehouse, and/or production site of a company. Does not store
addresses /
locations of customers. Contains 23 rows; references with the
departments and countries tables. ';
CREATE INDEX "HR"."LOC_CITY_IX" ON "HR"."LOCATIONS" ("CITY")
PCTFREE 10 INITRANS 2 MAXTRANS 255 NOLOGGING COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT
FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "EXAMPLE" ;
CREATE INDEX "HR"."LOC_COUNTRY_IX" ON "HR"."LOCATIONS" ("COUNTRY_ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 NOLOGGING COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT
FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "EXAMPLE" ;
CREATE INDEX "HR"."LOC_STATE_PROVINCE_IX" ON "HR"."LOCATIONS"
("STATE_PROVINCE")
PCTFREE 10 INITRANS 2 MAXTRANS 255 NOLOGGING COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT
FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "EXAMPLE" ;