Trick: massage a Group_Concat() result on the csv string into an Insert...Values... string: droptableifexistst;createtablet( txt text );insertintotvalues('1,2,3,4,5,6,7,8,9');droptemporarytableifexiststemp;createtemporarytabletemp( valchar(255) );set@sql=concat("insert into temp ...
Need some help.. In MYSQL, How to split a comma separated string into rows using regular expressions and without creating functions or procedures. The comma separated string length is dynamic. For eg. String: 23456,16524,84755,98457,06978,05986,73454,34785 ...
This is done by using PARTITION BY LIST(expr) where expr is a column value or an expression based on a column value and returning an integer value, and then defining each partition by means of a VALUES IN (value_list), where value_list is a comma-separated list of integers. ...
--bind-addressUse specified network interface to connect to MySQL Server --character-sets-dirDirectory where character sets can be found --columnsThis option takes a comma-separated list of column names as its value --compressCompress all information sent between client and server ...
DRDS支持range和list格式的两级分区,具体建表语法和mysql分区语法类似range支持类型:DATE,DATETIME,TIMESTAMP 支持year,month,day函数,函数为空和day函数一样; TINYINT, SMALLINT, MEDIUMINT, INT (INTEGER), and BIGINT 支持year,month,day函数,此时传入的值转换为年月日,然后和分表信息对比;函数为空则直接使用...
CSV 是逗号分隔值(Comma-Separated Values)文件,它允许以表格格式保存数据。长期以来,它一直是在数据库之间传输数据的首选格式。最近,XML 和 JSON 等的互联网驱动格式也获得了很大的关注。CSV 文件非常适合用于数据库,因为它们能非常好地表示表数据,并且几乎可以与任何电子表格程序一起使用,例如 Microsoft Excel 或 Go...
--config type: Array Read this comma-separated list of config files; if specified, this must be the first option on the command line. --database short form: -D; type: string Connect to this database. --delayed-insert Add the DELAYED modifier to INSERT statements. Adds the DELAYED ...
TheGROUP_CONCATfunction. Combines the table names into a comma-separated list. TheINTO @droptoolclause. Stores the constructed command in the@droptoolvariable. TheFROM information_schema.tablesclause. Specifies the source of table information. ...
-fs <file:///|hdfs://namenode:port> specify default filesystem URL to use, overrides'fs.defaultFS'property from configurations. -jt <local|resourcemanager:port> specify a ResourceManager -files <file1,...> specify a comma-separated list of files to be copied to the map reduce cluster ...
Imagine a web form with a set of checkboxes (any or all can be selected). I chose to save them in a comma separated list of values stored in one column of the database table. Now, I know that the correct solution would be to create a second table and properly normalize the database...