Re: New Topic HOWTO select several rows in one comma- separated Al M August 21, 2007 06:06AM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the res
names of one or more existing partitions to be changed. partition_definitions is a comma-separated list of new partition definitions, which follow the same rulesas for the partition_definitions list used in CREATE TABLE. You are not limited to merging several partitions into one, or to ...
To obtain rows from multiple partitions, supply their names as a comma-delimited list. For example, SELECT * FROM employees PARTITION (p1, p2) returns all rows from partitions p1 and p2 while excluding rows from the remaining partitions. ...
To get started, we’ll need a table that contains numbers at least as big as the length of our longest comma-separated list. We like Sisense’s Views feature for this, but in a pinch, a temporary table also works: create temporary table numbers as ( select 1 as n union select 2 as...
You can set the default SQL mode by startingmysqldwith the--sql-mode="modes"option, or by usingsql-mode="modes"inmy.cnf(Unix operating systems) ormy.ini(Windows).modesis a list of different modes separated by comma (“,”) characters. The default value is empty (no modes set). The...
Pass a string with a comma separated list of items to add to the default flags. If you don't want a default flag to be used prepend the flag with a minus sign. To add a flag that is not in the default list, just write the flag name, or prefix it with a plus (case insensitive...
使用select into outfile 生成CSV格式,需要注意默认的转义字符为 eccaped by '\', 比如 NULL 导出CSV为: \N,如下所示: 导入时,使用的语句如下: LOAD DATA INFILE '/tpm/xxx.csv' INTO TABLE xxxxxx FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY "\r\n" ...
Server System Variables The MySQL server maintains many system variables that indicate how it is configured. Each system variable has a default value. System variables can be set at server startup using options on the command line or in an option file. Most of them can be changed dynamically ...
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...
Explanation: table "plans" keeps list of contacts in field 'contacts', where each number is corresponding 'uid' from table "contacts". And table "contacts" keeps contacts data, where field 'type' refers to 'uid' of "contacts_types". And I need to make an sql SELECT query, which will...