来看第1个问题,MySQL 的词法分析在处理SELECT查询常数的语句时,会根据数字串的长度选择合适的类型来存储数值,决策逻辑代码位于int_token(const char *str, uint length)@sql_lex.cc,具体的代码片段如下: static inline uint int_token(const char *str, uint length) {
问mySQL出现"DECIMAL“意外语法错误EN同事问MySQL数据类型DECIMAL(N,M)中N和M分别表示什么含义，M不用说...
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Defining a Decimal Number p (precision) s (scale) Maximum Limit Size in Bytes Creating a Decimal Column Inserting Decimal Value Reference Defining a Decimal Number Use the following syntax to define a Decimal Number 1 2 3 4 5 decimal[ (p[ ,s] )] OR numeric[ (p[ ,s] )]The...
The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments are as follows: M is the maximum number of digits (the precision). It has a range of 1 to 65. D is the number of digits to the right of the decimal point (the scale). It has ...
The syntax is the same in each vendor and includes: pstands for precision and is the total number of digits. sstands for scale and is the number of decimal places. The range of values for precision and scale is different for each vendor: ...
The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments are as follows: M is the maximum number of digits (the precision). It has a range of 1 to 65. D is the number of digits to the right of the decimal point (the scale). It has...
The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments are as follows: M is the maximum number of digits (the precision). It has a range of 1 to 65. D is the number of digits to the right of the decimal point (the scale). It has ...
The declaration syntax for aDECIMALcolumn isDECIMAL(M,D). The ranges of values for the arguments are as follows: Mis the maximum number of digits (the precision). It has a range of 1 to 65. Dis the number of digits to the right of the decimal point (the scale). It has a range ...
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