如何运行多个查询和结果存储在多个 csv 文件中

Question

如何运行 mysql查询并以csv格式输出结果。我知道解决方案应该是这样的：

SELECT col1,col2,col3
 FROM my_table
 INTO OUTFILE '/tmp/orders.csv'
 FIELDS TERMINATED BY ','
 ENCLOSED BY '"'
 LINES TERMINATED BY '\n';

但我的问题是，我有大约 15 个查询，我想运行所有 15 个查询和结果存储在多个 csv 中 files.currently 对于第一个查询它工作正常并创建 csv file.but 没有为其他人创建 csv queries.Please 帮助 :)

查询 1

SELECT CE.ENTITY_ID 'CUSTOMER ID'
 ,CE.EMAIL 'CUSTOMER EMAIL ADDRESS'
 ,CE.CREATED_AT
 ,CE.UPDATED_AT
 ,CE.IS_ACTIVE
 ,CE.STORE_ID
 ,(SELECT VALUE
      FROM CUSTOMER_ENTITY_VARCHAR CEV1
      WHERE CEV1.ATTRIBUTE_ID = 1 
      AND CEV1.ENTITY_ID = CE.ENTITY_ID) AS 'FIRST NAME'
 ,CEV.VALUE AS 'LAST NAME'
FROM CUSTOMER_ENTITY CE, CUSTOMER_ENTITY_VARCHAR CEV
WHERE CE.ENTITY_ID = CEV.ENTITY_ID
     AND CEV.ATTRIBUTE_ID = 2
INTO OUTFILE '$localDrive/DIM_CUSTOMER.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '`'
LINES TERMINATED BY '\n'";

查询2

SELECT LC.LOG_ID
 ,LC.VISITOR_ID
 ,LC.CUSTOMER_ID
 ,LC.LOGIN_AT
 ,LC.LOGOUT_AT
 ,LVI.HTTP_REFERER 'REFERRER SOURCE URL'
 ,LVI.HTTP_USER_AGENT
 ,LVI.HTTP_ACCEPT_LANGUAGE
 ,LVI.REMOTE_ADDR 
FROM LOG_CUSTOMER LC, LOG_VISITOR_INFO LVI
WHERE LVI.VISITOR_ID = LC.VISITOR_ID
INTO OUTFILE '$localDrive/AGG CUSTOMER LOGIN.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '`'
LINES TERMINATED BY '\n'";

*********************************************已解决** ************************************************

Actual error is the way i execute the query.correct way is given below:

$db->exec($query)

就是这样，它解决了我的问题：

Answer 1

实际错误是我执行query.correct的方式如下：

$db->exec($query);

就是这样，它解决了我的问题：

如何运行多个查询和结果存储在多个 csv 文件中

How to run Multiple Queries and result store in multiple csv files

php

mysql

csv

如何 运行 多个查询和结果存储在多个 csv 文件中

How to run Multiple Queries and result store in multiple csv files

php

mysql

csv

如何运行多个查询和结果存储在多个 csv 文件中