sp MySQL 导入_mysql数据导入redis
先編寫(xiě)sql腳本，查詢好需要導(dǎo)入redis的數(shù)據(jù)，同時(shí)在腳本中設(shè)定好redis的類型；最外層的查詢需要設(shè)定好查詢的字段數(shù)量，key value各算一個(gè)。
我用的是hash結(jié)構(gòu)，將表明以key的形式存儲(chǔ)，字段+對(duì)應(yīng)的值以json格式存儲(chǔ)，腳本在圖片下方
腳本上傳到服務(wù)器后使用此命令導(dǎo)入數(shù)據(jù)(用戶名密碼、腳本路徑自行更改)：mysql -uroot -p123456 -h 127.0.0.1 database--skip-column-names --raw
SELECT CONCAT(
"*4\r\n",
'$', LENGTH(redis_cmd), '\r\n',
redis_cmd, '\r\n',
'$', LENGTH(redis_key), '\r\n',
redis_key, '\r\n',
'$',LENGTH(hkey),'\r\n',hkey,'\r\n',
'$',LENGTH(hval),'\r\n',hval,'\r\n'
)
FROM(
SELECT
'HSET' AS redis_cmd,
'tab_product' AS redis_key,
a.product_id AS hkey,
CONCAT(
'{"id":"', a.id,'"',
',"productId":"', a.product_id,'"',
',"shopId":"', a.shop_id,'"',
',"title":"', a.title,'"',
',"originalPrice":"', a.original_price,'"',
',"price":"', a.price,'"',
',"info":"', a.info,'"',
',"createTime":"', a.create_time,'"',
',"updateTime":"', ifnull(a.update_time,''),'"',
',"status":"', a.status,'"',
',"img":"', a.img,'"',
',"upperLimit":"', a.upper_limit,'"',
',"endTime":"', ifnull(a.end_time,''),'"',
',"refushReason":"', ifnull(a.refush_reason,''),'"',
',"putawayDate":"', ifnull(a.putaway_date,''),'"',
',"tagId":"', ifnull(c.tag_id,''),'"',
',"tagName":"', ifnull(d.title,''),'"',
',"shopName":"', ifnull(e.shop_name,''),'"',
',"address":"', ifnull(e.address,''),'"',
',"businessHours":"', ifnull(e.business_hours,''),'"',
',"pension":"', round(ifnull(e.pension_scale,0) * a.price, 2),'"',
',"productImageList":', ifnull(CONCAT('[',GROUP_CONCAT('{"img":"',b.img, '"}'),']'),''),'}'
) AS hval
FROM `tab_product` a
LEFT JOIN tab_product_image b on a.product_id = b.product_id and b.state = 0
LEFT JOIN tab_product_tag c on c.product_id = a.product_id and c.state = 0
LEFT JOIN tab_tag d on d.id = c.tag_id and d.state = 0
LEFT JOIN shop.tab_shop e on e.shop_id = a.shop_id
group by a.id
) AS t
這是HSET結(jié)構(gòu)，用到的改一下上面的就可以了
總結(jié)
以上是生活随笔為你收集整理的sp MySQL 导入_mysql数据导入redis的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。
- 上一篇： python中常见的双下方法_pytho
- 下一篇： python预处理c语言_详解C语言编程