String handling routines Delphi syntax: function QuotedStr(const S: string): string; Description Use QuotedStr to convert the string S to a quoted string. A single quote character (') is inserted at the beginning and end of S, and each single quote character in the string is repeated. Note...
the strings can be enclosed in double quote. In this case, you don’t need to escape the single quote. This method will be helpful when you have to use lot of string value with single quotes to be used with the SQL query. Here is the example. ...
If we pass the argument quote_char(custom delimiter) value to the QUOTENAME() function, this function returns the Unicode string with a specified delimiter.In the following example,we are using the SQL QUOTENAME() function to retrieve the Unicode string with the specified delimiter â{...
SQL_MAX_TABLES_IN_SELECT SQL_MAX_USER_NAME_LEN 标量函数信息 InfoType 参数的以下值返回有关数据源和驱动程序支持的标量函数的信息。 有关标量函数的详细信息,请参阅 附录E:标量函数。 SQL_CONVERT_FUNCTIONS SQL_NUMERIC_FUNCTIONS SQL_STRING_FUNCTIONS SQL_SYSTEM_FUNCTIONS SQL_TIMEDATE_ADD_INTERVALS SQL_TIME...
If you want to write a single quote character inside a string literal, you must write 2 single quotes: ... WHERE comment = 'John''s house' When writing static SQL in your programs, the double quoted string literals as converted to ANSI single quoted string literals by the fglcomp compile...
Returns the string used to quote SQL identifiers. C# publicstring? IdentifierQuoteString { [Android.Runtime.Register("getIdentifierQuoteString","()Ljava/lang/String;","GetGetIdentifierQuoteStringHandler:Java.Sql.IDatabaseMetaDataInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=...
("&")forparam_pairinparams_list:param,value=param_pair.split("=")ifurldecodeInput:param=urllib.unquote(param).decode('utf8')value=urllib.unquote(value).decode('utf8')param=param.encode(charset)value=value.encode(charset)ifurlencodeOutput:param=urllib.quote_plus(param)value=urllib.quote_plus(...
聚合函数对一组值执行计算,并返回单个值。除了 COUNT 以外,聚合函数都会忽略空值。聚合函数经常与 SELECT 语句的 GROUP BY 子句一起使用。
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QUOTENAME (<’character_expression’>[, quote_ character]) 其中quote_ character 标明括字符串所用的字符,缺省值为“[]”。 2、REPLICATE() 返回一个重复character_expression 指定次数的字符串。 REPLICATE (character_expression integer_expression) 如果integer_expression 值为负值,则返回NULL 。 3、REVERSE()...