Trunc Function (with dates)In Oracle/PLSQL, the trunc function returns a date truncated to a specific unit of measure.oracle中，trunc函数返回一个按照特定计量单位截取后的date值 The syntax for the trunc function is:语法如下：trunc ( dat1e, [ format ] )da1te is the date to tru...
Applies To: Oracle 8i, Oracle 9i, Oracle 10g, Oracle 11g For example: --Oracle trunc()函数的用法 /***日期***/ 1.select trunc(sysdate) from dual--2011-3-18 今天的日期为2011-3-18 2.select trunc(sysdate, 'mm') from dual--2011-3-1 返回当月第一天. 3.select trunc(sysdate,'yy') ...
Examples The following example truncates a date: SELECT TRUNC(TO_DATE('27-OCT-92','DD-MON-YY'), 'YEAR') "New Year" FROM DUAL; New Year --- 01-JAN-92 日期 -- 2020-01-01selecttrunc(TO_DATE('2020-11-08','YYYY-MM-DD'),'YYYY')fromdual; 数字 -- 默认精度为0,结果为123selectt...
trunc function 语法如下: trunc( number, [ decimal_places ] ) number 要截取的数字。 decimal_places 要保留的小数位. 这个参数必须是个整数. 如果此参数缺省,默认保留0位小数 应用于:Oracle 8i, Oracle 9i, Oracle 10g, Oracle 11g 例如For example: trunc(125.815) would return 125 trunc(125.815, 0) ...
应用于: Oracle 8i, Oracle 9i, Oracle 10g, Oracle 11g 例如For example: 如果decimal_places大于number本身的小数位数,返回原数字不会加0. 如:trunc(125.81,3) would return 125.81; 如果decimal_places为负数,那么将指定的位数
Oracle Database/ Release 19 SQL Language Reference Syntax trunc_date::= Description of the illustration trunc_date.eps Purpose TheTRUNC(date) function returnsdatewith the time portion of the day truncated to the unit specified by the format modelfmt. This function is not sensitive to theNLS_CAL...
应用于: Oracle 8i, Oracle 9i, Oracle 10g, Oracle 11g 例如For example: 如果decimal_places大于number本身的小数位数,返回原数字不会加0. 如:trunc(125.81,3) would return 125.81; 如果decimal_places为负数,那么将指定的位数
RESULT --- 01-APR-20 In this example, we replaced the month (MM) by quarter (Q). In this tutorial, you have learned how to use the OracleTRUNC()function to truncate a date value to a specified unit. Was this tutorial helpful?
Examples The following example truncates a date: SELECT TRUNC(TO_DATE('27-OCT-92','DD-MON-YY'), 'YEAR') "New Year" FROM DUAL; New Year ---01-JAN-92 -- 2020-01-01 select trunc(TO_DATE('2020-11-08', 'YYYY-MM-DD'),'YYYY') from dual; oracletrunc函数q,Oracle常用函数Trunc及...
Oracle中trim函数的用法 trim一般都是用在删除字符串两边的空格。实际上,trim也可以用来删除字符串两边的指定字符。并且trim指定删除的字符串只能是单个字符。如 trim('字符1' from '字符串2') ,字符1只能是单个字符。 1. trim()删除字符串两边的空格。