Incorporate Comments 1
Project: http://git-wip-us.apache.org/repos/asf/trafodion/repo Commit: http://git-wip-us.apache.org/repos/asf/trafodion/commit/dabbfe6d Tree: http://git-wip-us.apache.org/repos/asf/trafodion/tree/dabbfe6d Diff: http://git-wip-us.apache.org/repos/asf/trafodion/diff/dabbfe6d Branch: refs/heads/master Commit: dabbfe6d7263a1281245cc6b6779769c4a42839a Parents: 3260a58 Author: liu.yu <qwerty...@hotmail.com> Authored: Thu Mar 22 14:37:54 2018 +0800 Committer: liu.yu <qwerty...@hotmail.com> Committed: Thu Mar 22 14:37:54 2018 +0800 ---------------------------------------------------------------------- .../sql_functions_and_expressions.adoc | 80 ++++++++++---------- 1 file changed, 40 insertions(+), 40 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/trafodion/blob/dabbfe6d/docs/sql_reference/src/asciidoc/_chapters/sql_functions_and_expressions.adoc ---------------------------------------------------------------------- diff --git a/docs/sql_reference/src/asciidoc/_chapters/sql_functions_and_expressions.adoc b/docs/sql_reference/src/asciidoc/_chapters/sql_functions_and_expressions.adoc index 63d2560..b86f4c8 100644 --- a/docs/sql_reference/src/asciidoc/_chapters/sql_functions_and_expressions.adoc +++ b/docs/sql_reference/src/asciidoc/_chapters/sql_functions_and_expressions.adoc @@ -150,7 +150,7 @@ See the individual entry for the function. == Datetime Functions These functions use either a datetime value expression as an argument or -return a result of DATETIME, VALUE or CHAR: +return a result of datetime data type: [caption="Table 7-3 "] .Overview of DATETIME Functions @@ -175,11 +175,11 @@ to _datetime_expr_ and normalizes the result. to _datetime_expr_. | DATE | <<date_part_function_of_an_interval,DATE_PART Function (of an Interval)>> | Extracts the datetime field specified by _text_ from the interval value -specified by interval and returns the result as an exact numeric value. -| NUMERIC VALUE +specified by interval and returns the result as an exact numeric. +| NUMERIC | <<date_part_function_of_a_timestamp,DATE_PART Function (of a Timestamp)>> | Extracts the datetime field specified by _text_ from the datetime value -specified by timestamp and returns the result as an exact numeric value. -| NUMERIC VALUE +specified by timestamp and returns the result as an exact numeric. +| NUMERIC | <<date_sub_function,DATE_SUB Function>> | Subtracts the specified _interval_expression_ from _datetime_expr._ | DATE or TIMESTAMP @@ -188,49 +188,49 @@ _datetime_expr._ | <<dateadd_function,DATEADD Function>> | Adds the interval specified by _datepart_ and _num_expr_ to _datetime_expr_. | DATE or TIMESTAMP -| <<datediff_function,DATEDIFF Function>> | Returns the integer value for the number of _datepart_ units of time +| <<datediff_function,DATEDIFF Function>> | Returns the integer for the number of _datepart_ units of time between _startdate_ and _enddate_. -| INTEGER VALUE +| INTEGER | <<dateformat_function,DATEFORMAT Function>> | Formats a datetime value for display purposes. | CHAR -| <<day_function,DAY Function>> | Returns an integer value in the range 1 through 31 that represents the +| <<day_function,DAY Function>> | Returns an integer in the range 1 through 31 that represents the corresponding day of the month. You can also use DAYOFMONTH. -| INTEGER VALUE (from 1 to 31) +| INTEGER (from 1 to 31) | <<dayname_function,DAYNAME Function>> | Returns the name of the day of the week from a date or timestamp expression. | CHAR -| <<dayofmonth_function,DAYOFMONTH Function>> | Returns an integer value in the range 1 through 31 that represents the +| <<dayofmonth_function,DAYOFMONTH Function>> | Returns an integer in the range 1 through 31 that represents the corresponding day of the month. You can also use DAY. -| INTEGER VALUE (from 1 to 31) -| <<dayofweek_function,DAYOFWEEK Function>> | Returns an integer value in the range 1 through 7 that represents the +| INTEGER (from 1 to 31) +| <<dayofweek_function,DAYOFWEEK Function>> | Returns an integer in the range 1 through 7 that represents the corresponding day of the week. -| INTEGER VALUE (from 1 to 7) -| <<dayofyear_function,DAYOFYEAR Function>> | Returns an integer value in the range 1 through 366 that represents the +| INTEGER (from 1 to 7) +| <<dayofyear_function,DAYOFYEAR Function>> | Returns an integer in the range 1 through 366 that represents the corresponding day of the year. -| INTEGER VALUE (from 1 to 366) +| INTEGER (from 1 to 366) | <<extract_function,EXTRACT Function>> | Returns a specified datetime field from a datetime value expression or an interval value expression. -| NUMERIC VALUE -| <<hour_function,HOUR Function>> | Returns an integer value in the range 0 through 23 that represents the +| NUMERIC +| <<hour_function,HOUR Function>> | Returns an integer in the range 0 through 23 that represents the corresponding hour of the day. -| INTEGER VALUE (from 0 to 23) +| INTEGER (from 0 to 23) | <<juliantimestamp_function,JULIANTIMESTAMP Function>> | Converts a datetime value to a Julian timestamp. | TIMESTAMP -| <<minute_function,MINUTE Function>> | Returns an integer value in the range 0 through 59 that represents the +| <<minute_function,MINUTE Function>> | Returns an integer in the range 0 through 59 that represents the corresponding minute of the hour. -| INTEGER VALUE (from 0 to 59) -| <<month_function,MONTH Function>> | Returns an integer value in the range 1 through 12 that represents the +| INTEGER (from 0 to 59) +| <<month_function,MONTH Function>> | Returns an integer in the range 1 through 12 that represents the corresponding month of the year. -| INTEGER VALUE (from 1 to 12) +| INTEGER (from 1 to 12) | <<monthname_function,MONTHNAME Function>> | Returns a character literal that is the name of the month of the year (January, February, and so on). | CHAR -| <<quarter_function,QUARTER Function>> | Returns an integer value in the range 1 through 4 that represents the +| <<quarter_function,QUARTER Function>> | Returns an integer in the range 1 through 4 that represents the corresponding quarter of the year. -| INTEGER VALUE (from 1 to 4) -| <<second_function,SECOND Function>> | Returns an integer value in the range 0 through 59 that represents the +| INTEGER (from 1 to 4) +| <<second_function,SECOND Function>> | Returns an integer in the range 0 through 59 that represents the corresponding second of the minute. -| INTEGER VALUE (from 0 to 59) +| INTEGER (from 0 to 59) | <<sysdate_function,SYSDATE Function>> | Retrieves the current date of the server rather than the session. | DATE | <<systimestamp_function,SYSTIMESTAMP Function>> | Retrieves the current date and time (including fractional seconds with six-digit precision) of the server rather than the session. @@ -238,8 +238,8 @@ corresponding second of the minute. | <<timestampadd_function,TIMESTAMPADD Function>> | Adds the interval of time specified by _interval-ind_ and _num_expr_ to _datetime_expr_. | DATE or TIMESTAMP -| <<timestampdiff_function,TIMESTAMPDIFF Function>> | Returns the integer value for the number of _interval-ind_units of time between _startdate_ and _enddate_. -| INTEGER VALUE +| <<timestampdiff_function,TIMESTAMPDIFF Function>> | Returns the integer for the number of _interval-ind_units of time between _startdate_ and _enddate_. +| INTEGER | <<to_char_function,TO_CHAR Function>> | Converts a datetime value to a character value. | CHAR | <<to_date_function,TO_DATE Function>> | Converts a character value to a date or timestamp value. @@ -248,11 +248,11 @@ _num_expr_ to _datetime_expr_. | TIME | <<to_timestamp_function,TO_TIMESTAMP Function>> | Converts a character value to a timestamp value. | TIMESTAMP -| <<week_function,WEEK Function>> | Returns an integer value in the range 1 through 54 that represents the +| <<week_function,WEEK Function>> | Returns an integer in the range 1 through 54 that represents the corresponding week of the year. -| INTEGER VALUE (from 1 to 54) -| <<year_function,YEAR Function>> | Returns an integer value that represents the year. -| INTEGER VALUE +| INTEGER (from 1 to 54) +| <<year_function,YEAR Function>> | Returns an integer that represents the year. +| INTEGER |=== See the individual entry for the function. @@ -2397,7 +2397,7 @@ DATEADD(DAY, 7, timestamp'2008-02-29 00:00:00') [[datediff_function]] == DATEDIFF Function -The DATEDIFF function returns the integer value for the number of +The DATEDIFF function returns the integer for the number of _datepart_ units of time between _startdate_ and _enddate_. DATEDIFF is a {project-name} SQL extension. @@ -2941,7 +2941,7 @@ Start/Date Time/Shipped (EXPR) == DAYOFMONTH Function The DAYOFMONTH function converts a DATE or TIMESTAMP expression into an -INTEGER value in the range 1 through 31 that represents the +INTEGER in the range 1 through 31 that represents the corresponding day of the month. The result returned by the DAYOFMONTH function is equal to the result returned by the DAY function. @@ -2977,7 +2977,7 @@ Start/Date Time/Shipped (EXPR) == DAYOFWEEK Function The DAYOFWEEK function converts a DATE or TIMESTAMP expression into an -INTEGER value in the range 1 through 7 that represents the corresponding +INTEGER in the range 1 through 7 that represents the corresponding day of the week. The value 1 represents Sunday, 2 represents Monday, and so forth. @@ -3015,7 +3015,7 @@ The value returned is 5, representing Thursday. The week begins on Sunday. == DAYOFYEAR Function The DAYOFYEAR function converts a DATE or TIMESTAMP expression into an -INTEGER value in the range 1 through 366 that represents the +INTEGER in the range 1 through 366 that represents the corresponding day of the year. DAYOFYEAR is a {project-name} SQL extension. @@ -3996,7 +3996,7 @@ tom 91 77 43 == HOUR Function The HOUR function converts a TIME or TIMESTAMP expression into an -INTEGER value in the range 0 through 23 that represents the +INTEGER in the range 0 through 23 that represents the corresponding hour of the day. HOUR is a {project-name} SQL extension. @@ -4917,7 +4917,7 @@ SELECT MIN (salary) FROM persnl.employee; == MINUTE Function The MINUTE function converts a TIME or TIMESTAMP expression into an -INTEGER value, in the range 0 through 59, that represents the +INTEGER, in the range 0 through 59, that represents the corresponding minute of the hour. MINUTE is a {project-name} SQL extension. @@ -8412,7 +8412,7 @@ TIMESTAMPADD (SQL_TSI_SECOND, -5, DATE '2008-07-01') [[timestampdiff_function]] == TIMESTAMPDIFF Function -The TIMESTAMPDIFF function returns the integer value for the number of +The TIMESTAMPDIFF function returns the integer for the number of _interval-ind_ units of time between _startdate_ and _enddate_. If _enddate_ precedes _startdate_, the return value is negative or zero. @@ -9278,7 +9278,7 @@ Start/Date Time/Shipped (EXPR) == YEAR Function The YEAR function converts a DATE or TIMESTAMP expression into an -INTEGER value that represents the year. +INTEGER that represents the year. YEAR is a {project-name} SQL extension.
