In PostgreSQL, the“::”operator and CAST operator are used for converting/casting one type to another. Using the TO_NUMBER(), CAST(), and“::”operator, we can convert a string into a numeric type such as an integer, double, or decimal. The objective of this write-up is to learn ...
函数:convert(string bytea, src_encoding name, dest_encoding name)说明:Convert string to dest_encoding. The original encoding is specified by src_encoding. The string must be valid in this encoding. Conversions can be defined by CREATE CONVERSION. Also there are some predefined conversions. See ...
函数:convert(string bytea, src_encoding name, dest_encoding name) 说明:Convertstringtodest_encoding. The original encodingisspecifiedbysrc_encoding. The string must be validinthis encoding. Conversions can be definedbyCREATECONVERSION. Also there aresomepredefined conversions. SeeTable9-7foravailable ...
CONVERT(varchar(200), "+fieldName+", 120) "+aliasName; 字符转数字类型 1.TO_NUMBER 递归 1.start with connect by prior 2. with recursive as 字符串拼接 1.wm_concat 2.string_agg decode(条件,值1,返回值1,值2,返回值2,...值n,返回值n,缺省值) 1.decode(X,A,B,C,D,E) 这个函数运行...
timestamp(text, text)timestamp 把字串转换成时间戳 to_timestamp('05 Dec 2000', 'DD Mon YYYY')to_timestamp(double)timestamp 把UNIX纪元转换成时间戳 to_timestamp(200120400)to_number(text, text)numeric 把字串转换成numeric to_number('12,454.8-', '99G999D9S')用于日期/时间格式化的模式：
convert('PostgreSQL' using iso_8859_1_to_utf8) 22、9;PostgreSQL'lower(string)text把字串转化为小写lower('TOM')tomoctet_length(string)int字串中的字节数octet_length('jose')4overlay(string placing string from int for int)text替换子字串overlay('Txxxxas' placing 'hom' from 2 for 4)Thomas...
说明：Convert string to lower case转换字符串为⼩写 例⼦：bit_length('jose') =32 函数：octet_length(string)说明：Number of bytes in string 计算字符串的字节数 例⼦：octet_length('jose') =4 函数：overlay(string placing string from int[for int])说明：Replace substring替换字符串中任意长度...
convert('PostgreSQL' using iso_8859_1_to_utf8) UTF8编码的'PostgreSQL' lower(string) text 把字符串转化为小写 lower('TOM') tom octet_length(string) int 字符串中的字节数 octet_length('jose') 4 overlay(string placing stringfrom int [for int]) text 替换子字符串 overlay('Txxxxas' placing...
Fixed an issue in CONVERT function to make it work consistently with BINARY and VARBINARY types in Babelfish. Fixed the issue of inconsistent output from select query with FOR XML PATH clause. Fixed an issue to rethrow correct TSQL error code. Fixed behaviour of STRING_AGG() function for input...
Babelfish の BINARY 型と VARBINARY 型と一貫して機能するように CONVERT 関数の問題を修正しました。 FOR XML PATH 句を使用した Select クエリからの出力に一貫性がない問題を修正しました。 正しい TSQL エラーコードを再スローする問題を修正しました。 マルチバイト文字を含む入力の STRING_AGG...