Source_string指定源字符表达式;pattern指定规则表达式;replace_string指定用于替换的字符串;position指定起始搜索位置;occurtence指定替换出现的第n个字符串;match_parameter指定默认匹配操作的文本串。 其中replace_string,position,occurtence,match_parameter参数都是可选的。 REGEXP_SUBSTR(source_string, pattern[,position...
replace(char,search_string[,replace_string]) 如果不指定replace_string,会将搜索到的值删除。 REGEXP_REPLACE是REPLACE的增强版,支持正则表达式,扩展了一些功能。 regexp_replace(source_string,pattern[,replace_string[,position[,occurrence[,match_parameter]]]) replace_string表示用什么来替换source_string中与pa...
(2)lower(char):将字符串转化为小写的格式 (3)upper(char): 将字符串转化为大写的格式 (4)length(char):返回字符串的长度 (5)substr(char ,m,n):取字符串的字串,从m开始,取长度为n的字串 (6)replace(char1,search_string,replace_string),在字符串char1中,将 search_string替换成replace_string. 26....
使用:sqluldr2 --help查看帮助 参数如下: user = username/password@tnsname sql = SQL file name query = select statement field = separator string between fields record = separator string between records rows = print progress for every given rows (default, 1000000) file = output file name(default:...
ASCIISTR takesas its argument a string, or an expression that resolves to a string, in anycharacter set and returns an ASCII version of the string in the databasecharacter set. Non-ASCII characters are converted to the form \xxxx, where xxxx representsa UTF-16 code unit. ...
setString, setCharacterStream, setAsciiStream의 크기는 어떻게 됩니까? 팀문드라이버하한상한바인드 메커니즘참고 모두 모두 모두 0 0 Null 모두 SQL 클라이언트 1자 32,766자 직접 모두 SQL 클라이언트 ...
null = replace null with given value escape = escape character for special characters escf/t = escape from/to characters list format = MYSQL: MySQL Insert SQLs, SQL: Insert SQLs. exec = the command to execute the SQLs. prehead = column name prefix for head line. ...
setString、setCharacterStream 和 setAsciiStream 的长度是多少? 格式Stmt驱动程序下限上限绑定机制备注 所有 所有 所有 0 0 Null 所有 SQL 客户端 1 个字符 32766 个字符 直接 所有 SQL 客户端 32767 个字符 2147483647 字节 流 所有 SQL 客户端 2147483648 字节 2147483647 个字符 临时Clob CHAR 服务器 1 个...
static java.lang.String AL32UTF8ToString(byte[] bytes, int offset, int nbytes) Convert a sequence of bytes in AL32UTF8 format to a String. static java.lang.String AL32UTF8ToString(byte[] bytes, int offset, int nbytes, boolean useReplacementCharacter) abstract byte[] convert(CharacterSet fr...
1)insert#为缺省方式，在数据装载开始时要求表为空-- 2)append#在表中追加新记录-- 3)replace#删除...