19 lines
994 B
Plaintext
19 lines
994 B
Plaintext
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CREATE TABLE "JOB_HISTORY"
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( "EMPLOYEE_ID" NUMBER(6,0) CONSTRAINT "JHIST_EMPLOYEE_NN" NOT NULL ENABLE,
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"START_DATE" DATE CONSTRAINT "JHIST_START_DATE_NN" NOT NULL ENABLE,
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"END_DATE" DATE CONSTRAINT "JHIST_END_DATE_NN" NOT NULL ENABLE,
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"JOB_ID" VARCHAR2(10) CONSTRAINT "JHIST_JOB_NN" NOT NULL ENABLE,
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"DEPARTMENT_ID" NUMBER(4,0),
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CONSTRAINT "JHIST_DATE_INTERVAL" CHECK (end_date > start_date) ENABLE,
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CONSTRAINT "JHIST_JOB_FK" FOREIGN KEY ("JOB_ID")
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REFERENCES "JOBS" ("JOB_ID") ENABLE,
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CONSTRAINT "JHIST_EMP_FK" FOREIGN KEY ("EMPLOYEE_ID")
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REFERENCES "EMPLOYEES" ("EMPLOYEE_ID") ENABLE,
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CONSTRAINT "JHIST_DEPT_FK" FOREIGN KEY ("DEPARTMENT_ID")
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REFERENCES "DEPARTMENTS" ("DEPARTMENT_ID") ENABLE
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) ;
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CREATE UNIQUE INDEX "JHIST_EMP_ID_ST_DATE_PK" ON "JOB_HISTORY" ("EMPLOYEE_ID", "START_DATE")
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;
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ALTER TABLE "JOB_HISTORY" ADD CONSTRAINT "JHIST_EMP_ID_ST_DATE_PK" PRIMARY KEY ("EMPLOYEE_ID", "START_DATE")
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USING INDEX "JHIST_EMP_ID_ST_DATE_PK" ENABLE;
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