If pad is not specified, str will be padded to the left with space characters if it is a character string, and with zeros if it is a byte sequence. lpad(str, lenl,padl)-返回str,用pad左填充到len的长度如果str比len长,则返回值缩短为len字符或字节。如果未指定pad,如果是字符串,str将在...
EXTRACT HOUR MINUTE MONTH MONTHNAME NOW QUARTER SECOND TIMESTAMPADD TIMESTAMPDIFF WEEK YEARDATABASE IFNULL USER 备注 如果您试图使用数据库不支持的函数,则将发生错误。 日期和时间文本 用于日期、时间和时间戳文本的转义语法如下所示: SQL {literal-type 'value'} ...
% --代表匹配的子串 _ --代表匹配的字符 'Intro%' --matches any string beginning with “Intro”. '%Comp%' --matches any string containing “Comp” as a substring. '_ _ _' --matches any string of exactly three characters.___没有空格吧 '_ _ _ %' --matches any string of at least...
rowsuf = row sufix string for each line. colsep = separator string between column name and value. presql = SQL or scripts to be executed before data unload. postsql = SQL or scripts to be executed after data unload. lob = extract lob values to single file (FILE). lobdir = subdirector...
ALL EXTRACT POSITION ALLOCATE FALSE PRECISION ALTER FETCH PREPARE AND FIRST PRESERVE ANY FLOAT PRIMARY ARE FOR PRIOR AS FOREIGN PRIVILEGES ASC FORTRAN PROCEDURE ASSERTION FOUND PUBLIC AT FROM READ AUTHORIZATION FULL REAL AVG GET REFERENCES BEGIN GLOBAL RELATIVE BETWEEN GO RESTRICT ...
EXTRACT, FALSE, FETCH, FILTER, FINAL, FIRST, FIRST_VALUE, FLOAT, FLOOR, FOLLOWING, FOR, FOREIGN, FORTRAN, FOUND, FRAC_SECOND, FREE, FROM, FULL, FUNCTION, FUSION, G, GENERAL, GENERATED, GET, GLOBAL, GO, GOTO, GRANT, GRANTED, GROUP, GROUPING, HAVING, HIERARCHY, HOLD, HOUR, IDENTITY, ...
22029 noncharacter in UCS string INVALID_UTF8_STRING 22032 invalid JSON text AI_FUNCTION_INVALID_MAX_WORDS AI_INVALID_ARGUMENT_VALUE_ERROR INVALID_JSON_ROOT_FIELD INVALID_JSON_SCHEMA_MAP_TYPE REMOTE_FUNCTION_HTTP_RESULT_PARSE_ERROR 2203G sql json item cannot be cast to target type AI_FUNCTION_...
SQL Server How to extract Certain nth character from a string in SQLThe documentation for the ...
ALL EXTRACT POSITION ALLOCATE FALSE PRECISION ALTER FETCH PREPARE AND FIRST PRESERVE ANY FLOAT PRIMARY ARE FOR PRIOR AS FOREIGN PRIVILEGES ASC FORTRAN PROCEDURE ASSERTION FOUND PUBLIC AT FROM READ AUTHORIZATION FULL REAL AVG GET REFERENCES BEGIN GLOBAL RELATIVE BETWEEN GO RESTRICT ...
返回字符串数据的字符长度或二进制数据的字节数。 此函数是char_length 函数和length 函数的同义函数。 语法 character_length(expr) 参数 expr:一个 BINARY 或 STRING 表达式。 返回 结果类型为 INTEGER。 字符串数据的长度包括尾随空格的长度。 二进制数据的长度包括二进制零的长度。