外部キー

Question

を含めるためには、Oracle SQL DeveloperでDDLを生成し、私は目的に合わせSQL Developerおよびそれらのどれを使用してOracleデータベースからDDLを生成するために、いくつかのオプションを試してみました。

外部キー制約なしのDDLでのクイックDDLオプションの結果。私は取り除くことができないストレージとloggingsなどのDDLのテーブルの結果についてのフォーマット

編集好きです。

は、誰もが、SQL Developerを使用してDDLを生成するより良い方法を持っている不思議？もちろん、完全に主観的である -

おかげ

Answer 1

クイックDDLは、それは我々が適切と思われるものでそれをしない、好みの任意の並べ替えを使用していません。あなたは、ツリー内のオブジェクトのためのSQLのページに行けば

しかし、DDLは環境設定]> [データベース]> [エクスポート]に設定された優先順位以下に生成されます。

は、バージョン4.2のために、あなたはまた、ワークシートにDDLコマンドを使用することができます。また、SET DDLを使用して、生成するDDLのタイプをオフまたはオンにすることができます。

SET DDL PRETTY ON; 
SET DDL CONSTRAINTS ON; 
SET DDL REF_CONSTRAINTS ON; 
SET DDL PARTITIONING ON; 
SET DDL TABLESPACE OFF; 
SET DDL SEGMENT_ATTRIBUTES OFF; 
SET DDL STORAGE OFF; 

DDL EMPLOYEES 

DDL Option CONSTRAINTS on 
DDL Option REF_CONSTRAINTS on 
DDL Option PARTITIONING on 
DDL Option TABLESPACE off 
DDL Option SEGMENT_ATTRIBUTES off 
DDL Option STORAGE off 
DDL Option STORAGE off 
    CREATE TABLE "HR"."EMPLOYEES" 
    ( "EMPLOYEE_ID" NUMBER(6,0), 
    "FIRST_NAME" VARCHAR2(20), 
    "LAST_NAME" VARCHAR2(25) CONSTRAINT "EMP_LAST_NAME_NN" NOT NULL ENABLE, 
    "EMAIL" VARCHAR2(25) CONSTRAINT "EMP_EMAIL_NN" NOT NULL ENABLE, 
    "PHONE_NUMBER" VARCHAR2(20), 
    "HIRE_DATE" DATE CONSTRAINT "EMP_HIRE_DATE_NN" NOT NULL ENABLE, 
    "JOB_ID" VARCHAR2(10) CONSTRAINT "EMP_JOB_NN" NOT NULL ENABLE, 
    "SALARY" NUMBER(8,2), 
    "COMMISSION_PCT" NUMBER(2,2), 
    "MANAGER_ID" NUMBER(6,0), 
    "DEPARTMENT_ID" NUMBER(4,0), 
    CONSTRAINT "EMP_SALARY_MIN" CHECK (salary > 0) ENABLE, 
    CONSTRAINT "EMP_EMAIL_UK" UNIQUE ("EMAIL") 
    USING INDEX ENABLE, 
    CONSTRAINT "EMP_EMP_ID_PK" PRIMARY KEY ("EMPLOYEE_ID") 
    USING INDEX ENABLE, 
    CONSTRAINT "EMP_DEPT_FK" FOREIGN KEY ("DEPARTMENT_ID") 
     REFERENCES "HR"."DEPARTMENTS" ("DEPARTMENT_ID") ENABLE, 
    CONSTRAINT "EMP_JOB_FK" FOREIGN KEY ("JOB_ID") 
     REFERENCES "HR"."JOBS" ("JOB_ID") ENABLE, 
    CONSTRAINT "EMP_MANAGER_FK" FOREIGN KEY ("MANAGER_ID") 
     REFERENCES "HR"."EMPLOYEES" ("EMPLOYEE_ID") ENABLE 
    ) ; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."EMPLOYEE_ID" IS 'Primary key of employees table.'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."FIRST_NAME" IS 'First name of the employee. A not null column.'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."LAST_NAME" IS 'Last name of the employee. A not null column.'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."EMAIL" IS 'Email id of the employee'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."PHONE_NUMBER" IS 'Phone number of the employee; includes country code and area code'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."HIRE_DATE" IS 'Date when the employee started on this job. A not null column.'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."JOB_ID" IS 'Current job of the employee; foreign key to job_id column of the 
jobs table. A not null column.'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."SALARY" IS 'Monthly salary of the employee. Must be greater 
than zero (enforced by constraint emp_salary_min)'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."COMMISSION_PCT" IS 'Commission percentage of the employee; Only employees in sales 
department elgible for commission percentage'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."MANAGER_ID" IS 'Manager id of the employee; has same domain as manager_id in 
departments table. Foreign key to employee_id column of employees table. 
(useful for reflexive joins and CONNECT BY query)'; 
    COMMENT ON COLUMN "HR"."EMPLOYEES"."DEPARTMENT_ID" IS 'Department id where employee works; foreign key to department_id 
column of the departments table'; 
    COMMENT ON TABLE "HR"."EMPLOYEES" IS 'employees table. Contains 107 rows. References with departments, 
jobs, job_history tables. Contains a self reference.'; 
    CREATE INDEX "HR"."EMP_DEPARTMENT_IX" ON "HR"."EMPLOYEES" ("DEPARTMENT_ID") 
    ; 
    CREATE INDEX "HR"."EMP_JOB_IX" ON "HR"."EMPLOYEES" ("JOB_ID") 
    ; 
    CREATE INDEX "HR"."EMP_MANAGER_IX" ON "HR"."EMPLOYEES" ("MANAGER_ID") 
    ; 
    CREATE INDEX "HR"."EMP_NAME_IX" ON "HR"."EMPLOYEES" ("LAST_NAME", "FIRST_NAME") 
    ; 
    CREATE INDEX "HR"."EMP_NAME_UPPER" ON "HR"."EMPLOYEES" (UPPER("LAST_NAME")) 
    ; 
    CREATE OR REPLACE EDITIONABLE TRIGGER "HR"."UPDATE_JOB_HISTORY" 
    AFTER UPDATE OF job_id, department_id ON employees 
    FOR EACH ROW 
BEGIN 
    add_job_history(:old.employee_id, :old.hire_date, sysdate, 
        :old.job_id, :old.department_id); 
END; 
/
ALTER TRIGGER "HR"."UPDATE_JOB_HISTORY" DISABLE; 
    CREATE OR REPLACE EDITIONABLE TRIGGER "HR"."SECURE_EMPLOYEES" 
    BEFORE INSERT OR UPDATE OR DELETE ON employees 
BEGIN 
    secure_dml; 
END secure_employees; 
/
ALTER TRIGGER "HR"."SECURE_EMPLOYEES" DISABLE;