在MySQL中,将VARCHAR类型转换为BigDecimal类型通常需要在应用程序层面进行,因为MySQL本身不直接支持将VARCHAR转换为BigDecimal类型。不过,你可以通过查询时使用CAST或CONVERT函数将VARCHAR转换为DECIMAL类型,然后在Java应用程序中使用BigDecimal来处理这个DECIMAL值。 步骤概述 在MySQL中查询并转换
ConvertStringToDecimal+CAST(string_value: STRING, decimal: DECIMAL) : DECIMAL+CONVERT(string_value: STRING, decimal: DECIMAL) : DECIMAL+trimString(string_value: STRING) : STRING+roundDecimal(decimal_value: DECIMAL, precision: INTEGER) : DECIMAL 总结 本文介绍了如何在MySQL中将字符串类型的数字转换为...
The integer is not converted to a temporal value. To compare the operands as DATETIME values, use CAST() to explicitly convert the subquery value to DATETIME. 6、If one of the arguments is a decimal value, comparison depends on the other argument. The arguments are compared as decimal values...
7,浮点数 : DECIMAL 8,整数 : SIGNED 9,无符号整数 : UNSIGNED 附2, To cast a string to a numeric value in numeric context, you normally do not have to do anything other than to use the string value as though it were a number: 复制代码 代码示例: mysql> SELECT 1+’1′; -> 2 If ...
November 29, 2005 06:39AM Re: Convert varchar to int/ decimal? 22473 Nathan Huebner June 06, 2006 05:08PM problem with nested query 5485 shrikrishna kashid June 08, 2006 05:13AM Sorry, you can't reply to this topic. It has been closed....
CONVERT()函数,将一个字段的值转成另一个类型并输出。 语法:CONVERT(字段名, 转换的类型) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select*from t01 order byconvert(substr(c1,2),unsigned); 其中, unsigned,表示无符号,不能表示小数。
浮点数 : DECIMAL 整数: SIGNED 无符号整数 : UNSIGNED ===附录2=== http://dev.mysql.com/doc/refman/5.0/en/cast-functions.html To cast a string to a numeric value in numeric context, you normally do not have to do anything other than to use ...
CONVERT_TO_VARCHAR:列被转换为无界的VARCHAR。 jdbc-types-mapped-to-varchar 允许以逗号(,)分隔的列表的数据类型映射强制转换为无界VARCHAR。 case-insensitive-name-matching 数据库和集合名称是否区分大小写。取值如下: true:不区分大小写。 false(默认值):区分大小写。
decimal 可以指定小数位 decimal(总长度,小数位长度) 日期类型: date 日期类型 datetime 日期类型 timestamp 时间戳 字符类型: char 不可变长度的字符串 varchar 可变字符串字符串 最大长度 21845 text 大文本类型 长度无限制 其他类型: blob 二进制流类型 ...
Re: Convert varchar to int/ decimal? 22470 Nathan Huebner June 06, 2006 05:08PM problem with nested query 5482 shrikrishna kashid June 08, 2006 05:13AM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright...