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文件名称:字符函数-SQL语言基础
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更新时间:2021-04-25 19:38:12
SQL 基础
字符函数
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字符函数
LOWER
UPPER
INITCAP
CONCAT
SUBSTR
LENGTH
INSTR
LPAD
TRIM
大小写转换函数
字符操作函数
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Character Functions
Single-row character functions accept character data as input and can return both character and number values. Character functions can be divided into the following:
Case conversion functions
Character manipulation functions
Note: The functions discussed in this lesson is a subset of the available functions.