MySQL知識（二十三） 表的匯出和匯入

2021-07-10 05:05:53 字數 4476 閱讀 5991

mysql資料庫中的資料可以匯出成.sql文字檔案、xml檔案或html檔案。

select columnlist from


table


where condition into outfile 'filename' [option]


--options 選項


fields terminated by


'value' /*設定字段之間分隔符，單個或多個字元，預設為'\t'*/


fields [optionally] encloseed by


'value' /*設定字段包圍分隔符，單個字元*/


fields escaped by


'value' /*如何寫入或讀取特殊字元，單個字元*/


lines starting by


'value' /*每行資料開頭的字元，單個或多個*/


lines terminated by


'value' /*每行資料結尾的字元，單個或多個*/
（1）例子

select * from test.person into outfile "c:/person0.txt";
person0.txt

1


green


21 student


2 suse 2 dancer


3 mary 24 musician


4 willam 20 student


5 laura 0


6 evans 27 secretary


7 dale 22 student


8 edison 28 cook


9 harry 21 student
（2）例子

select * from test.person into outfile "c:/person1.txt"


fields 


terminated by


',' enclosed by


'\"'


escaped by


'\''


lines 


terminated by


'\r\n';
person1.txt

"1","green","21","student"


"2","suse","2","dancer"


"3","mary","24","musician"


"4","willam","20","student"


"5","laura","0",""


"6","evans","27","secretary"


"7","dale","22","student"


"8","edison","28","cook"


"9","harry","21","student"
mysqldump -t path -u root -p dbname [tables][options]


--option 選項


--fields-terminated-by=value


--fields-enclosed-by=value


--fields-optionally-enclosed-by=value


--fields-escaped-by=value


--lines-terminated-by=value
（1）例子

mysqldump -t c:/ test person -u root -p
語句執行後生成兩個檔案，person.sql（包含create語句等）和person.txt（包含資料資訊）。

mysql -u root -p


--execute=


"select 語句" dbname>filename.txt
相比mysqldump，mysql工具匯出的結果可讀性更強。

（1）例子

mysql -u root -p


--execute=


"select * from person;" test > c:\person3.txt
（2）例子，使用- -vertical引數顯示結果

mysql -u root -p


--vertical --execute=


"select * from person;" test > c:\person4.txt
（3）例子，匯出為html檔案

mysql -u root -p


--html --execute=


"select * from person;" test > c:\person5.html
（4）例子，匯出為xml檔案

mysql -u root -p


--xml


--execute=


"select * from person;" test > c:\person6.


xml
load data infile 'filename.txt'


into


table tablename [option][ignore number lines]


--options 選項


fields terminated by


'value' /*設定字段之間分隔符，單個或多個字元，預設為'\t'*/


fields [optionally] encloseed by


'value' /*設定字段包圍分隔符，單個字元*/


fields escaped by


'value' /*如何寫入或讀取特殊字元，單個字元*/


lines starting by


'value' /*每行資料開頭的字元，單個或多個*/


lines terminated by


'value' /*每行資料結尾的字元，單個或多個*/
（1）例子

mysql> select *  from test.person into outfile "c:/person0.txt";


query ok, 9 rows affected


mysql> use test;


database changed


mysql> delete


from person;


query ok, 9 rows affected


mysql> load data infile 'c:/person0.txt'


into


table test.person;


query ok, 9 rows affected


records: 9 deleted: 0 skipped: 0 warnings: 0


mysql> select * from person;


+----+--------+-----+-----------+


| id | name | age | info |


+----+--------+-----+-----------+


| 1 | green | 21 | student |


| 2 | suse | 2 | dancer |


| 3 | mary | 24 | musician |


| 4 | willam | 20 | student |


| 5 | laura | 0 | |


| 6 | evans | 27 | secretary |


| 7 | dale | 22 | student |


| 8 | edison | 28 | cook |


| 9 | harry | 21 | student |


+----+--------+-----+-----------+


9 rows in set


mysqlimport -u root -p dbname filename.txt [options]


--option 選項


--fields-terminated-by=value


--fields-enclosed-by=value


--fields-optionally-enclosed-by=value


--fields-escaped-by=value


--lines-terminated-by=value


--ignore-lines=n

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