Quotation marks can be nested in one of two ways. The first
method is to double the quotation marks in the nested string. For example:
NLS_DATE_FORMAT = '''Today is'' MM/DD/YYYY'
The second method is to alternate single and double quotation marks. For example:
NLS_DATE_FORMAT = '"Today is" MM/DD/YYYY'[@more@]
method is to double the quotation marks in the nested string. For example:
NLS_DATE_FORMAT = '''Today is'' MM/DD/YYYY'
The second method is to alternate single and double quotation marks. For example:
NLS_DATE_FORMAT = '"Today is" MM/DD/YYYY'[@more@]
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/10599713/viewspace-1005018/ ，如需转载，请注明出处，否则将追究法律责任。
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