使用CONVERT函数 SELECTCONVERT('123.45',DECIMAL(10,2)); 1. 和CAST函数类似,CONVERT函数也可以将字符串转换为DECIMAL类型。 示例 假设有一个名为products的表,其中有一个名为price的字符串类型字段,我们想要将price字段的值转换为DECIMAL类型并进行计算。下面是一个示例: CREATETABLEproducts(idINTPRIMARYKEY,nameVAR...
StringToDecimal+castStringToDecimal(String inputString) : Decimal 上面的类图中,表示了一个名为StringToDecimal的类,该类包含一个公共方法castStringToDecimal,用于将字符串转换为Decimal类型。 状态图 下面是一个表示字符串转Decimal过程的状态图: Check FormatFormat CorrectFormat IncorrectConvert SuccessConvert Faile...
If you are using a string in an arithmetic operation, this is converted to a floating-point number. If you convert a “zero” date string to a date, CONVERT() and CAST() return NULL when the NO_ZERO_DATE SQL mode is enabled. As of MySQL 5.0.4, they also produce a warning. 有关...
MySQL数据库中的字符串转数字是指将存储为字符串的数值数据转换为数字类型的操作。 在MySQL中,可以使用CAST函数或CONVERT函数将字符串转换为数字。 1. 使用CAST函数进行字符串转...
SELECT CAST(field1 AS DECIMAL), CAST(field2 AS DECIMAL) FROM tablename WHERE unqid = 10 ORDER BY field1, field2 ASC; didn't work. The string will be in a price format eg: 400.99 or 2.49. basically I need to obtain the lowest number first. ...
If you convert a “zero” date string to a date,CONVERT()andCAST()returnNULLwhen theNO_ZERO_DATESQL mode is enabled. As of MySQL 5.0.4, they also produce a warning. Previous/Next/Up/Table of Contents
FROM_DAYS() Convert a day number to a date FROM_UNIXTIME() Format Unix timestamp as a date GET_FORMAT() Return a date format string HOUR() Extract the hour LAST_DAY Return the last day of the month for the argument LOCALTIME(), LOCALTIME Synonym for NOW() LOCALTIMESTAMP,...
1.【日期函数】-【CONVERT_TZ(NOW(), 'UTC', '-08:00')】 UTC 代表协调世界时。它是时间标准,在世界范围内普遍使用。MYSQL CURDATE()用于将给定日期从一个时区转换为另一个时区。此函数接受 3 个参数: CONVERT_TZ(dt,from_tz,to_tz) date- 您需要转换的日期值 ...
FROM_DAYS() Convert a day number to a date FROM_UNIXTIME() Format Unix timestamp as a date GET_FORMAT() Return a date format string HOUR() Extract the hour LAST_DAY Return the last day of the month for the argument LOCALTIME(), LOCALTIME Synonym for NOW() LOCALTIMESTAMP,...
Re: How can I convert from string to decimal and order by asc Posted by:Tom Melly Date: October 02, 2009 07:13AM Ouch! You probably had decimal(4,2) (4 numbers in total, with 2 after the decimal point). Decimal is an 'odd' numeric type - essentially, it's really stored as an...