SELECT into outfile备份数据库数据_MySQL

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SELECT into outfile 备份数据库数据 select email into outfile "test.txt" from email;  select substring(boss,0,2),addr from guest;  LOAD DATA [LOW_PRIORITY | CONCURRENT] [LOCAL]  INFILE “/opt/abc.txt" INTO TABLE table_name     --   FIELDS TERMINATED BY ',' (column1, column2,colum3);  mysql> SELECT * FROM table1 INTO OUTFILE 'data.txt' FIELDS TERMINATED BY ',' FROM ...  为了将由逗号分隔的文件读回来，正确的语句将是：  mysql> LOAD DATA INFILE 'data.txt' INTO TABLE table2 FIELDS TERMINATED BY ',';   -- 相反，如果你试图用下面显示的语句读取文件，它不会工作，因为它命令LOAD DATA INFILE在字段之间  寻找定位符：  mysql> LOAD DATA INFILE 'data.txt' INTO TABLE table2 FIELDS TERMINATED BY '/t';  可能的结果是每个输入行将被解释为单个的字段。  LOAD DATA INFILE能被用来读取从外部来源获得的文件。例如，以dBASE格式的文件将有由逗号分隔并用  双引号包围的字段。如果文件中的行由换行符终止，下面显示的命令说明你将用来装载文件的字段和行  处理选项：  mysql> LOAD DATA INFILE 'data.txt' INTO TABLE tbl_name FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '/n';   -- 任何字段或行处理选项可以指定一个空字符串('')。如果不是空，FIELDS [OPTIONALLY] ENCLOSED BY和  FIELDS ESCAPED BY值必须是一个单个字符。FIELDS TERMINATED BY和LINES TERMINATED BY值可以是超  过一个字符。例如，写入由回车换行符对（CR+LF）终止的行，或读取包含这样行的一个文件，指定一个  LINES TERMINATED BY '/r /n'子句。  -- FIELDS [OPTIONALLY] ENCLOSED BY控制字段的包围字符。对于输出 (SELECT ... INTO OUTFILE)，如果  你省略OPTIONALLY，所有的字段由ENCLOSED BY字符包围。对于这样的输出的一个例子(使用一个逗号作  为字段分隔符)显示在下面：  "1","a string","100.20" "2","a string containing a , comma","102.20" "3","a string containing a /" quote","102.20" "4","a string containing a /", quote and comma","102.20" ================= insert into tabl(id,email) select id, email from guest;    作者 huimai bitsCN.com