Found a total of 3 related content
oracle cast函数用法
Article Introduction:Oracle 中的 CAST 函数用于将一种数据类型转换为另一种数据类型,支持各种数据类型转换,包括数值、字符、日期和布尔类型,以及自定义类型。特定语法为:CAST(expression AS data_type),其中 expression 为要转换的表达式,data_type 为要转换到的数据类型。
2024-05-24
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195
Usage of cast function in oracle
Article Introduction:The CAST function is used to explicitly convert a value to another data type with the syntax CAST(expression AS data_type). Usage examples include: convert numeric value to string, string to date, and string to number. Conversion options include numeric, character, date, and boolean types.
2024-04-30
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942
How does MySQL CAST handle overflow?
Article Introduction:MySQLCAST can handle overflows that occur during the evaluation of numeric expressions. Suppose that if a numeric expression evaluation produces an overflow, MySQL will reflect an error message. Now to handle this overflow we can change the value to UNSIGNED with the help of CAST. For example, when adding 1 to the maximum value of BIGINT, MySQL generates an error due to overflow, as shown below -mysql>Select9223372036854775807+1;ERROR1690(22003):BIGINTvalueisoutofrangein'(9223372036854775807+1)&
2023-09-07
comment 0
596