... 单字符串 unit string 单字符存储 single character store 单字符定界符 single character delimiter ...
2
?单字符存取
... 单字符串 unit string 单字符存取single character store 单字符号 one-letter symbol ...
双语例句
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Hence, if you want to define a VARCHAR column that can store up to 10 characters, you have to define the column as VARCHAR (40) because a singlecharacter requires from 1 to 4 bytes.