--自定义函数 delimiter $$ createfunctionmyfun3(ia int,ib int)returns int beginreturnia+ib;end $$ delimiter; 查看函数 代码语言:javascript 代码运行次数:0 运行 AI代码解释 showfunctionstatus[like'pattern'];--查看所有自定义函数,自定义函数只能在本
DELIMITER//CREATEPROCEDUREsplitString(INinputStringtext,INdelimiterCharCHAR(1))BEGINDROPTEMPORARYTABLEIFEXISTStemp_string;CREATETEMPORARYTABLEtemp_string(valstext);WHILELOCATE(delimiterChar,inputString)>1DOINSERTINTOtemp_stringSELECTSUBSTRING_INDEX(inputString,delimiterChar,1);SETinputString=REGEXP_REPLACE(input...
delimiter:分隔符escape character:转义符mysql delimiter刚才试图搞mysql的存储过程,被郁闷了一回,最简单的存储过程,只要加上begin 和end就有莫名其妙的错误。比如 CREATE PROCEDURE p() BEGIN SELECT * FROM T; END; 够简单了吧?就是报错,其实是分号的问题,说的正规点叫分隔符。应该这样 1. delimiter // 2....
)ENGINE = INNODB DEFAULT CHARSET=utf8; SELECT LOCATE(split,str) INTO pos; WHILE pos > 0 DO BEGIN -- 把','左边的字符串放到临时表中; INSERT INTO temp_str(str) VALUES (LEFT(str,pos-1)); -- 把','右边的字符串重新赋值给str; SELECT RIGHT(str,CHAR_LENGTH(str)-pos) INTO str; -- ...
如何将MaxCompute中类型为array<string>的数据导入至AnalyticDB MySQL集群? 原因:MaxCompute外表不支持嵌套类型,无法直接将类型为array<string>的数据导入至AnalyticDB MySQL。 解决方法:您可以将MaxCompute中的数据以Parquet的格式导入至OSS,再通过AnalyticDB for MySQL读取OSS中以Parquet格式存储的数据。
不支持SELECT INTO OUTFILE/INTO DUMPFILE/INTO var_name 不支持query_expression_options,如:HIGH_PRIORITY/STRAIGHT_JOIN/SQL_SMALL_RESULT/SQL_BIG_RESULT/SQL_BUFFER_RESULT/SQL_CACHE/SQL_NO_CACHE/SQL_CALC_FOUND_ROWS 不支持不带列名的INSERT/REPLACE 不支持全局的DELETE/UPDATE使用ORDER BY/LIMIT(版本>=14.4...
MySQL users, however, are in the dark. In this post, we’ll show how to split our comma-separated string into a table of values for easier analysis in MySQL. Making a table of numbers To get started, we’ll need a table that contains numbers at least as big as the length of our ...
Enable (true) or disable (false) chunking for table data, which splits the data for each table into multiple files. The default is true, so chunking is enabled by default. Use bytesPerChunk to specify the chunk size. If you set the chunking option to false, chunking does not take place...
Returns the substring from stringstrbeforecountoccurrences of the delimiterdelim. Ifcountis positive, everything to the left of the final delimiter (counting from the left) is returned. Ifcountis negative, everything to the right of the final delimiter (counting from the right) is returned.SUBSTRI...
SingleOutputStreamOperator<Tuple2<String, Integer>> result = lines.flatMap(new FlatMapFunction<String, Tuple2<String, Integer>>() { @Override public void flatMap(String value, Collector<Tuple2<String, Integer>> out) throws Exception { String[] arr = value.split(","); for (String word :...