SQL，添加在日期欄的時刻領域

7:00 AM

的問題是，當我嘗試添加它到應該包含時間的列，由於格式錯誤，它給了我錯誤。

我試圖改變使用to_char的格式，但它給我一個錯誤說該函數沒有實現。

這裏是代碼。

CREATE TABLE call_info 
(
    call_id NUMBER(4) 
    CONSTRAINT cio_call_id_CK CHECK (call_id >= 1000 AND call_id <= 9999), 
    report_first VARCHAR2(10), 
    report_last VARCHAR2(11) CONSTRAINT cio_report_last_NN NOT NULL, 
    report_date DATE CONSTRAINT cio_report_date_NN NOT NULL, 
    report_time DATE CONSTRAINT cio_report_time_NN NOT NULL, 
    problem_code NUMBER(1) CONSTRAINT cio_problem_code_NN NOT NULL, 
    service_code VARCHAR2(4), 
    CONSTRAINT cio_call_id_PK PRIMARY KEY (call_id), 
    CONSTRAINT cio_problem_code_FK FOREIGN KEY (problem_code) 
    REFERENCES problems(code), 
    CONSTRAINT cio_service_code_FK FOREIGN KEY (service_code) 
    REFERENCES services(code) 
) 
; 

BEGIN 
INSERT INTO call_info 
VALUES ('1102','Bill','Madden',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('7:00 PM','hh:mi AM'),'hh:mi-AM'),'2','PSEG'); 
INSERT INTO call_info 
VALUES ('1103','Anita','Verno',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('7:01 PM','hh:mi AM'),'hh:mi-AM'),'2','PSEG'); 
INSERT INTO call_info 
VALUES ('1200','Emily','Vandalovsky',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('7:45 PM','hh:mi AM'),'hh:mi-AM'),'2','PSEG'); 
INSERT INTO call_info 
VALUES ('1111','Gary','Correa',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('8:10 PM','hh:mi AM'),'hh:mi-AM'),'1','DPR'); 
INSERT INTO call_info 
VALUES ('1101','Mickey','Mouse',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('11:00 PM','hh:mi AM'),'hh:mi-AM'),'6','PSEG'); 
INSERT INTO call_info 
VALUES ('1012','Minnie','Mouse',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('11:21 PM','hh:mi AM'),'hh:mi-AM'),'1','DPR'); 
INSERT INTO call_info 
VALUES ('1013','Goofy','Disney',TO_DATE('29-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('11:47 PM','hh:mi AM'),'hh:mi-AM'),'5','OEM'); 
INSERT INTO call_info 
VALUES ('1040','Donald','Duck',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('2:34 AM','hh:mi AM'),'hh:mi-AM'),'4','OEM'); 
INSERT INTO call_info 
VALUES ('1501','Cinderella','Disney',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('3:15 AM','hh:mi AM'),'hh:mi-AM'),'3','CSH'); 
INSERT INTO call_info 
VALUES ('1506','Ernie','Sesame',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('3:16 AM','hh:mi AM'),'hh:mi-AM'),'3','CSH'); 
INSERT INTO call_info 
VALUES ('1007','Burt','Sesame',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('3:18 AM','hh:mi AM'),'hh:mi-AM'),'3','CSH'); 
INSERT INTO call_info 
VALUES ('1081','Bruce','Springsteen',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('4:10 AM','hh:mi AM'),'hh:mi-AM'),'2','PSEG'); 
INSERT INTO call_info 
VALUES ('1910','Chris','Christie',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('4:25 AM','hh:mi AM'),'hh:mi-AM'),'7','OEM'); 
INSERT INTO call_info 
VALUES ('1010','Mitt','Romney',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('5:15 AM','hh:mi AM'),'hh:mi-AM'),'1','DPR'); 
INSERT INTO call_info 
VALUES ('1015','Barack','Obama',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('5:17 AM','hh:mi AM'),'hh:mi-AM'),'1','DPR'); 
INSERT INTO call_info 
VALUES ('1019','Bruce','Wayne',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('7:57 AM','hh:mi AM'),'hh:mi-AM'),'5','OEM'); 
INSERT INTO call_info 
VALUES ('1314','Minas','Kousoulis',TO_DATE('30-OCT-17','DD-MON-YY'),TO_CHAR(TO_DATE('8:01 AM','hh:mi AM'),'hh:mi-AM'),'4','WTR'); 
END;

請注意這個日期數據類型不能被改變爲不同的一種。

謝謝您的關注。

Danilo

來源

2017-11-11 Danilo Patrucco

你在一個單獨的領域存儲時間？你應該把這兩個列放在一個列中。 –

該作業必須實際將其放在單獨的列中。我希望它是一樣的，它會讓我的生活更輕鬆。 –

無論如何，你應該把它們放在一列中。您可以分割日期和時間，例如虛擬列或視圖。 –

你爲什麼要把時間存儲在一個單獨的字段？你知道DATE有一個「時間」組件嗎？分離領域幾乎從來沒有有意義：

CREATE TABLE call_info (
    call_id NUMBER(4) 
    CONSTRAINT cio_call_id_CK CHECK (call_id >= 1000 AND call_id <= 9999), 
    report_first VARCHAR2(10), 
    report_last VARCHAR2(11) CONSTRAINT cio_report_last_NN NOT NULL, 
    report_datetime DATE CONSTRAINT cio_report_date_NN NOT NULL, 
    problem_code NUMBER(1) CONSTRAINT cio_problem_code_NN NOT NULL, 
    service_code VARCHAR2(4), 
    CONSTRAINT cio_call_id_PK PRIMARY KEY (call_id), 
    CONSTRAINT cio_problem_code_FK FOREIGN KEY (problem_code) 
    REFERENCES problems(code), 
    CONSTRAINT cio_service_code_FK FOREIGN KEY (service_code) 
    REFERENCES services(code) 
);

那麼我會建議將利用甲骨文TIMESTAMP關鍵字值：

INSERT INTO call_info (call_id, report_first, report_last, report_datetime, problem_code, service_code) 
    VALUES (1102, 'Bill', 'Madden', TIMETAMP '2017-10-29 19:00:00', 
2, 'PSEG');

請注意，我也刪除周圍的號碼單引號和insert列出所有列。

來源

2017-11-11 14:15:17

據我所知，在這種情況下，我猜想滿足有兩欄的要求（它是在練習的要求中指定的），我總是可以複製日期和時間（創建2欄只有日期，另一欄有日期和時間時間），然後當用select語句調用兩列時，我只是得到記錄的一部分。我認爲這可以做到。 –

SQL，添加在日期欄的時刻領域

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