Video: Dab tsi yog qhov txawv ntawm lub sijhawm thiab hnub tim hauv Oracle?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
TIMESTAMP thiab DATE sib txawv hauv hom raws li hauv qab no: DATE khw muag khoom muaj nuj nqis raws li xyoo pua, xyoo, hli, hnub , teev, feeb, thiab thib ob. TIMESTAMP khw muag khoom muaj nuj nqis li xyoo, hli, hnub, teev, feeb, thib ob, thiab feem thib ob.
Piv txwv li, timestamp datatype hauv Oracle yog dab tsi?
Cov TIMESTAMP datatype yog qhov txuas ntxiv ntawm DATE hom ntaub ntawv . Nws khaws cov xyoo, hli, hnub, teev, feeb, thiab qhov tseem ceeb thib ob. Nws kuj tseem khaws cov ntu ntu ntu, uas tsis khaws cia los ntawm DATE hom ntaub ntawv . Oracle Database SQL Reference rau cov lus qhia ntxiv txog cov TIMESTAMP datatype . "NLS_TIMESTAMP_FORMAT"
Tom qab ntawd, lo lus nug yog, yog Sysdate lub sijhawm? SYSDATE , SYSTIMESTAMP rov qab Database hnub thiab daim ntawv teev sijhawm , whereas current_date, current_timestamp rov qab hnub thiab daim ntawv teev sijhawm ntawm qhov chaw los ntawm qhov chaw koj ua haujlwm.
Ib sab ntawm no, hom hnub Oracle puas suav nrog lub sijhawm?
Hnub tim hom hauv oracle ua tsis yog suav nrog lub sijhawm tus nqi.
Kuv yuav tso saib hnub thiab sijhawm li cas hauv SQL Developer?
Raws li lub neej ntawd Oracle SQL Developer tso saib xwb a hnub tiv thaiv rau hnub tim teb. Koj tuaj yeem hloov tus cwj pwm no hauv kev nyiam. Mus rau Cov Cuab Yeej -> Nyiam -> Database -> NLS thiab hloov Hnub tim Format tus nqi rau DD-MON-RR HH24:MI:SS (rau 24 teev sij hawm tso saib ) lossis DD-MON-RR HH:MI:SS (rau 12 teev sij hawm tso saib ).
Pom zoo:
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