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Oracle > Oracle__6. Oracle 1Z0-051 Exam - Date Functions > Flashcards

Oracle__6. Oracle 1Z0-051 Exam - Date Functions Flashcards

1
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘yyyy/MM/dd’) FROM dual

A

2003/07/09The TO_CHAR function will have a leading space added when a format model is used for the sign (+/-)

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2
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘Month DD, YYYY’) FROM dual

A

July 09, 2003The TO_CHAR function will have a leading space added when a format model is used for the sign (+/-)

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3
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘FMMonth DD, YYYY’) FROM dual

A

July 9, 2003The FM removes leading zeros

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4
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘FMMonth DDth, yyyy’) FROM dual

A

July 9TH, 2003Notice July is capitalized and TH is all capital letters. The upper and lower case in format strings determines the case of the results.

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5
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘FMMON DDth, YYYY’) FROM dual

A

JUL 9TH, 2003Notice both JUL and TH are all capital letters. The upper and lower case in format strings determines the case of the results.

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6
Q

If today is July 9, 2003, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘FMMon ddth, YYYY’) FROM dual

A

Jul 9th, 2003Notice July is capitalized and th is all small letters. The upper and lower case in format strings determines the case of the results.

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7
Q

If today is Monday, what is returned from the following statement? SELECT TO_CHAR( sysdate,’DAY’) FROM Dual

A

MONDAYThe upper and lower case in format strings determines the case of the results.

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8
Q

If today is Monday, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘Day’) FROM Dual

A

MondayThe upper and lower case in format strings determines the case of the results.

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9
Q

If today is Monday, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘day’) FROM Dual

A

mondayThe upper and lower case in format strings determines the case of the results.

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10
Q

If it is 1:10 pm, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘HH:mm:ss A.M.’) FROM dual

A

1:10:00 P.M.Notice periods in PM because there were periods in A.M.

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11
Q

If it is 1:10 pm, what is returned from the following statement? SELECT TO_CHAR( sysdate, ‘HH24:mm:ss AM’) FROM dual

A

13:10:00 PMNotice no periods in PM because there were no periods in AM

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12
Q

If today is July 4, 2003, what is returned from the following statement? SELECT TO_DATE( ‘2003/07/09’, ‘yyyy/mm/dd’) FROM dual

A

09-Jul-99 The value returned is a date type and not a string. The default date type format is DD-Mon-RRNote: the data type format of the value must match the format. It does not care what today is.

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13
Q

If today is July 4, 2003, what is returned from the following statement? SELECT TO_CHAR( ‘070903’, ‘mmddyy’) FROM dual

A

jul0903The upper and lower case in format strings determines the case of the results. It does not care what today is.

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14
Q

What is returned from the following statement? SELECT LAST_DAY( ‘2003/02/03’, ‘yyyy/mm/dd’) FROM dual

A

28-feb-03 as a date typeThe last day of the month including leap years.The upper and lower case in format strings determines the case of the results.

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15
Q

What is returned from the following statement? SELECT NEXT_DAY( ‘01-AUG-03’, ‘FRIDAY’) FROM dual

A

returns the date of the next Friday after 1-Aug-03 as a date typeThe day values for the format include SUNDAY, MONDAY, TUESDAY, WEDNESDAY,THURSDAY, FRIDAY and SATURDAY

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16
Q

If today is FRIDAY, what is returned from the following statement? SELECT NEXT_DAY(sysdate, ‘FRIDAY’) FROM dual

A

The date value of the next Friday after today.Saturday a week after tomorrow.

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17
Q

What is returned from the following statement? SELECT ADD_MONTHS( ‘07-AUG-03’,3) FROM dual

A

07-NOV-03 as a date type

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18
Q

What is returned from the following statement? SELECT ADD_MONTHS( ‘05-AUG-03’,-2) FROM dual

A

05-JUN-03 as a date type

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19
Q

What is returned from the following statement? SELECT MONTHS_BETWEEN( TO_DATE( ‘2003/01/01’, ‘yyyy/mm/dd’), TO_DATE( ‘03-14-2003’, ‘mm-dd-yyyy’)) FROM dual

A

-2.41934if the same date is used for both parameters the result is 0

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20
Q

What is returned from the following statement? SELECT ROUND( ‘22-AUG-03’, ‘YEAR’) FROM dual

A

‘01-JAN-04’rounds to the first of the nearest year

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21
Q

What is returned from the following statement? SELECT ROUND( ‘22-AUG-03’, ‘MONTH’) FROM dual

A

‘01-SEP-03’rounds to the first of the nearest month

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22
Q

What is returned from the following statement? SELECT TRUNC( TO_DATE( ‘22-AUG-03’, ‘YEAR’)) FROM dual

A

‘01-JAN-03’Truncates to the first day of the year

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23
Q

What is returned from the following statement? SELECT TRUNC( ‘22-AUG-03’, ‘MONTH’) FROM dual

A

‘01-AUG-03’Truncates to the first day of the month

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24
Q

What is returned from this SQL statement if the value for hire_date is 10-JAN-00? SELECT TO_CHAR(hire_date,’yyyy’) FROM dual

A

2000 as a character data type

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25
Q

What is returned from this SQL statement if the value for hire_date is 10-JAN-00? SELECT TO_CHAR(hire_date,’rr’) FROM dual

A

00 as a character data type

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26
Q

What is returned from this SQL statement if the field value for hire_date is 01-JAN-00? SELECT TO_CHAR(hire_date,’mon dd yy’) FROM dual

A

jan 01 00 as a character data typeNotice lower case and leading zeros

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27
Q

What is returned from the following statement? SELECT trans_date, CASE TRIM(TO_CHAR(trans_date,’DAY’)) in (‘SATURDAY’,’SUNDAY’) THEN ‘Weekend’ ELSE ‘Weekday’ END ‘Day Type’ FROM transactions

A

“all values for the field ““Day Type”” which will have either ‘Weekday’ or ‘Weekend’ as a return for the column ““Day Type”””

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28
Q

What is returned from following statement? SELECT trans_date, CASE TRIM(TO_CHAR(trans_date,’DAY’)) BETWEEN ‘MONDAY’ AND ‘FRIDAY’ ‘Weekday’ ELSE ‘Weekend’ END ‘Day Type’ FROM transactions

A

“all values for the field ““Day Type”” will be ‘Weekend’ because no values will fall between ‘MONDAY’ and ‘FRIDAY’The first value of a BETWEEN must be the lower value.”

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29
Q

What is returned from following statement? SELECT trans_date, CASE TRIM(TO_CHAR(trans_date,’DAY’)) BETWEEN ‘MONDAY’ AND ‘THURSDAY’ ‘Weekday’ ELSE ‘Weekend’ END ‘Day Type’ FROM transactions

A

Values for days on MONDAY, TUESDAY, THURSDAY, SATURDAY and SUNDAY will be weekday while the rest will be weekend.BETWEEN does a string compare from words beginning with ‘MO’ thru ‘TH’

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30
Q

If today is Monday 28-OCT-98, what is returned from the following statement? SELECT NEXT_DAY(SYSDATE,’MON’) FROM dual

A

The next Monday after today.4-Nov-98

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31
Q

If today is Monday 28-OCT-98, what is returned from the following statement? SELECT LAST_DAY(SYSDATE) FROM DUAL

A

31-Oct-98The last day of the Month

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32
Q

What is the difference between the return values of the following 2 statements? SELECT TO_CHAR(‘28-OCT-2009’,’fmMonth’) FROM dual; SELECT TO_CHAR(‘28-OCT-2009’,’Month’) FROM dual;

A

The fmMonth will trim trailing spaces, because Month will have 2 trailing spaces.The TO_CHAR with a month has 9 character to hold the longest month name plus a trailing space

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33
Q

What is returned from the following statement? SELECT SYSDATE - TO_DATE(‘01-JANUARY-2007’) FROM dual

A

a numeric value which is the difference between the 2 dates

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34
Q

What is returned from the following statement? SELECT SYSDATE - TO_DATE(‘01/JANUARY/2007’) FROM dual

A

a numeric value which is the difference between the 2 dates

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35
Q

SELECT TO_CHAR(SYSDATE,’DD-MON-YYYY’) - ‘01-JAN-2007’ FROM dual

A

errorcannot subtract a string from a string

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36
Q

What date function accepts a date data type but returns a numeric value?

A

MONTHS_BETWEEN

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37
Q

What is the syntax of a function that will return the next Friday after the current date?

A

NEXT_DAY(sysdate,’FRIDAY’)

38
Q

What is the syntax of a function that will return the last day of the current month?

A

LAST_DATE(sysdate)

39
Q

What is the syntax of a function that will add 2 months to the current date?

A

ADD_MONTHS(sysdate,2)

40
Q

What is returned from ROUND(‘15-AUG-03’,’MONTH’)

41
Q

What is returned from ROUND(‘16-AUG-03’,’MONTH’)

42
Q

What is returned from TRUNC(‘16-Aug-03’,’YEAR’)

43
Q

What date format element will give you the week of the year?

44
Q

What date format element will give you the week of the month?

45
Q

What date format element will give you the Day of the year?

46
Q

What date format element will give you the day of the Month?

47
Q

What date format element will give you the day of the Week?

48
Q

What date format element will give you the 2 digit numerical month of the year?

49
Q

What date format element will give you the 3 letter abbreviation for the month?

50
Q

What date format element will give you a 9 character string of a month with trailing spaces?

A

MONTHMONTH always return a 9 character stringDecember has one trailing spaceMAY as 6 trailing spaces

51
Q

What date format element will represent the hour in values from 0 to 24?

52
Q

What date format element will represent the minutes from 0 to 59?

53
Q

“What numerical format element will return ““4th””?”

54
Q

“What numerical format element will return ““FOUR””?”

55
Q

“What numerical format element will return ““FOURTH””?”

56
Q

“What symbol will return ““Fourth””?”

A

fmDdspthfm removes preceding spaces

57
Q

What format element will display the local currency symbol?

58
Q

What format element will represents a number?

59
Q

What format element is needed to represent a leading zero?

60
Q

What format symbols are allow when using the TO_CHAR function to represent numeric values?

A

90$L. (Period), (Comma)

61
Q

What modifier specifies the exact match for the character argument and date format model of a TO_DATE function?

62
Q

Why does this create an error TO_DATE(‘May 24, 1999’, ‘fxMonth DD, YYYY’)

A

the fx means exact match. There are too many spaces between May and 24.

63
Q

What is returned from the following statement? SELECT MONTHS_BETWEEN(TO_DATE(‘10-JUL-2000’),TO_DATE(‘09-MAY-1999’) FROM Dual

A

-12.033312 months and 1 day

64
Q

What data type is returned from the MONTHS_BETWEEN function?

A

numeric value

65
Q

What is returned from the following statement? SELECT ADD_MONTHS(‘15-JUL-2007’,-2.0333) FROM dual

A

14-May-2007subtract 2 months and 1 day

66
Q

What is returned from each of these elements of the date format model? DY DAY DD

A

DY - three-letter abbreviation of the day of the weekDAY - full name of the day of the weekDD - numeric day of the month

67
Q

What data types must be in the 2 arguments for MONTHS_BETWEEN function?

A

date data types

68
Q

What is returned from each of these elements of the date format model? MM MON MONTH

A

MM - 2 digit value of the monthMON - three-letter abbreviation of the monthMONTH - full name of the month

69
Q

What is returned from each of these elements of the date format model? YYYY YEAR

A

YYYY - full year in numbersYEAR - year spelled out

70
Q

Assuming today is Monday, what is returned from each of these element of the date format model? DAY Day day

A

DAY - MONDAYDay - Mondayday - monday

71
Q

What is returned from the following statement? TO_CHAR (TO_DATE(‘0297’,’MM/YY’), ‘MM/YY’)

A

An errorThe TO_DATE format has a slash but the numbers do not. The format of the character string must match

72
Q

The characters FM and FX used in Format Models are termed?

A

Format model modifiers

73
Q

The characters DD, DDD, YYYY, YEAR, MONTH, RR used in Format Models are termed?

A

Format model elements

74
Q

The characters TH and SP which can be added to the end of a format model element are termed?

A

Format model suffixIf the number is 9 what will be the result from these format models?DD - 09DDTH - 09THDDSP - NINE

75
Q

What is returned from the following statement? SELECT LENGTH(TO_CHAR(‘04/01/20013, ‘Month yy’ ) FROM dual

A

April 03With 4 trailing spaces, The ‘Month’ format element always has 9 characters

76
Q

What is returned from the following statement? SELECT LENGTH(TO_CHAR(‘04/01/20013, ‘FmMonth yy’) FROM dual

A

April 03without trailing spaces

77
Q

What is the difference between these two formats? TO_CHAR(‘01-JAN-1998’,’FXDD-MON-YYYY’) TO_CHAR(‘1-JAN-1998’,’FXDD-MON-YYYY’)

A

The FX format model modifier requires the exact match.The second one fails because the day of 1 does not match the format DD

78
Q

If today is Aug 4, 1997, what is returned from the following statement? SELECT UPPER (sysdate) FROM dual

A

04-aug-97The month is in lower caseA date type can be in a character conversion function

79
Q

What is returned from the following statement? SELECT SUBSTR(sysdate,10,7) FROM dual;

A

NullSysdate is not textSELECT SUBSTR(TO_DATE(sysdate),10,7) FROM dual will not cause an error.

80
Q

Which of the following will return the date and time in fractional seconds? SELECT TO_CHAR(sysdate, ‘HH24:MI:SS.FF3’) FROM dual; SELECT TO_CHAR(sysdate, ‘HH24:MI:SS.FF’) FROM dual;

A

Both will return fractional seconds.The FF3 will return seconds to 3 decimal places.The FF will return seconds to decimal place defined by the default of the date type.

81
Q

The TO_DATE function converts what date type to a date data type?

A

a CHAR or VARCHAR2, but must be in a date format ‘dd-MON-rr’ if there is no format element.

82
Q

Are dates format sensitive when sorted?

83
Q

In this expression what does the fm do? to_Date(‘01-01-1999’,’fmDD-MM-YY’)

A

The fm suppresses zeros.The result would be: 1-1-99

84
Q

What data type would you expect if you see this data in a column? +001-02

A

INTERVAL YEAR TO MONTH

85
Q

What data type would you expect if you see this data in a column? +002 10:20:30.456

A

INTERVAL DAY TO SECOND

86
Q

What is returned from this statement? SELECT MONTHS_BETWEEN( TO_DATE(‘10-OCT-2000’),TO_DATE(‘09-OCT-1999) FROM dual

87
Q

What data type must be the 2 arguments in the MONTHS_BETWEEN function?

A

they must be date data types

88
Q

What data type is returned from the ADD_MONTHS function?

A

date data type

89
Q

What is returned from this statement? SELECT ADD_MONTHS(TO_DATE(‘15-JUL-2000’),-2.0333)

A

14-MAY-2000subtract 2 months and 1 day

90
Q

What is the different between the returns of these 2 statements? SELECT TO_DATE(‘01/JANUARY/2007’) FROM DUAL; SELECT TO_DATE(‘01-JANUARY-2007’) FROM DUAL;

A

Nothing the statement will return the same results.

91
Q

Will this statement cause and error? SELECT promo FROM promotions WHERE promo_date > ‘01-JAN-01’

A

NoThe date format matches the default date format DD-MON-RR

Oracle (16 decks)

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