Oracle SQL에서 기본 제약 만들기

Question

SQL Server에서 오라클 구문을 배우고 있습니다.

이 내가 SYSDATE에 ASOFSTARTDATETIME 기본하려는 DDL

CREATE TABLE "CDR"."EXTDL_REPORTSETS" 
    (
    "ID"    NUMBER(38,0) NOT NULL ENABLE, 
    "SHORTNAME"   NUMBER(38,0) NOT NULL ENABLE, 
    "DESCRIPTION"  NUMBER(38,0) NOT NULL ENABLE, 
    "ASOFSTARTDATETIME" NUMBER(38,0) NOT NULL ENABLE, 
    "ASOFENDDATETIME" NUMBER(38,0) NOT NULL ENABLE, 
    CONSTRAINT "PK_EXTDL_REPORTSETS" 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) TABLESPACE "CDR_DATA" ENABLE 
) 
    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 
) 
    TABLESPACE "CDR_DATA" ; 

내 테이블입니다. PL/SQL에서 기본 제약 조건을 어떻게 설정합니까?

편집

데이터 유형이 엉망 먹은, 그래서 나는 그것을 수정.

CREATE TABLE CDR.ExtDL_Reportsets(
    Id     NUMBER(38, 0) NOT NULL, 
    ShortName   VARCHAR2(255) NOT NULL, 
    Description   VARCHAR2(500) NOT NULL, 
    AsOfStartDateTime DATE    NOT NULL, 
    AsOfEndDateTime  DATE, 
    CONSTRAINT PK_ExtDL_Reportsets PRIMARY KEY (Id) 
) 
; 

Answer 1

사용 :

ALTER TABLE EXTDL_REPORTSETS 
    MODIFY last_ASOFSTARTDATETIME DATE DEFAULT SYSDATE 

나는 문제가 10g reference documentation - this is for 11g을 파고을 보내고 있습니다.

당신은 CREATE TABLE 문을 수행 할 경우

CREATE TABLE "CDR"."EXTDL_REPORTSETS" (
    "ID"    NUMBER(38,0) NOT NULL ENABLE, 
    "SHORTNAME"   VARCHAR2(255) NOT NULL ENABLE, 
    "DESCRIPTION"  VARCHAR2(500) NOT NULL ENABLE, 
    "ASOFSTARTDATETIME" DATE DEFAULT SYSDATE NOT NULL ENABLE, 
    "ASOFENDDATETIME" DATE NOT NULL ENABLE, 
    CONSTRAINT "PK_EXTDL_REPORTSETS" 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) TABLESPACE "CDR_DATA" ENABLE 
) 
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 
) 
TABLESPACE "CDR_DATA" ;