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jdbc - java應(yīng)用如何連接mysql5.7.17的group replication實(shí)現(xiàn)failover

三節(jié)點(diǎn)的MySQL Group Replication搭建完畢, 測(cè)試也都o(jì)k, 能夠?qū)崿F(xiàn)自動(dòng)切換primary, 可以實(shí)現(xiàn)1個(gè)node的down機(jī)而不影響整個(gè)集群, 可是jdbc如何連接并實(shí)現(xiàn)自動(dòng)切換呢? 比如我這么寫...

From [MySQLdiscussion group] 2017-04-17 16:23:54 0  0  1326

php - 微信公眾號(hào)支付完成后，怎么把數(shù)據(jù)寫入數(shù)據(jù)庫(kù)

初學(xué)微信，用的官方微信支付的php DEMO，在自己的服務(wù)器調(diào)試成功了，想請(qǐng)教下高手，在哪里添加代碼后，可以把服務(wù)器回調(diào)接收到的訂單信息寫入到自己的數(shù)據(jù)庫(kù)。

From [MySQLdiscussion group] 2017-04-17 16:48:45 0  4  1325

Laravel sort by price with special price conditions

I have a table with the following columns (price, special offer, whether on sale). +-------+------+-----------...

From [MySQLdiscussion group] 2023-09-22 13:06:46 0  1  1323

Database connection problem

Through the teacher's steps, you can see hello world when you open the browser. Then when you add the connect....

From [MySQLdiscussion group] 2018-07-24 17:48:33 0  1  1321

Please report to developers: PDO::__construct(): Server-sent charset (255) not recognized by client

I'm trying to connect to a MySQL database from a Symfony3 application. But when trying to create a MySQL schem...

From [MySQLdiscussion group] 2023-10-16 10:02:44 0  2  1321

navicat - 數(shù)據(jù)庫(kù)建索引選擇的是hash，但保存后自動(dòng)變成了btree|實(shí)踐時(shí)mysql四種引擎都有什么要注意的？

問題1：數(shù)據(jù)庫(kù)建索引選擇的是hash，但保存后自動(dòng)變成了btree數(shù)據(jù)庫(kù)里會(huì)出現(xiàn)重復(fù)的字段是不是都不能成功建立hash索引？ 問題似乎解決了，我選的innodb，不支持hash索引。那么問題2來(lái)了：大家實(shí)踐后覺得mysq...

From [MySQLdiscussion group] 2017-04-17 15:45:12 0  2  1321

php - mysql connected table statistical query

Activity table rehearse id (self-incrementing id), name (activity name), send_time (start time), uid (user ID ...

From [MySQLdiscussion group] 2017-06-24 09:41:26 0  1  1318

Make a backup of mysql for online projects

For a project running online, how to back up the database without stopping the database?

From [MySQLdiscussion group] 2018-07-30 14:57:05 0  2  1317

mysql如何查前兩天的數(shù)據(jù)？

如何實(shí)現(xiàn)？

From [MySQLdiscussion group] 2016-11-09 16:31:05 0  2  1316

求sql多對(duì)一解決方案？

a表有多個(gè)字段，a_uid/b_uid/c_uid都對(duì)應(yīng)user表的id.怎么取出這些id對(duì)應(yīng)的userName比較合理呢？我想到的有兩種，第一種是一次性取出user表的id,username然后在程序進(jìn)行數(shù)組比較；第二...

From [MySQLdiscussion group] 2017-03-16 14:24:41 0  2  1315

Connect phpMyAdmin to MySQL server via SSL

I might be barking up the wrong tree... However, what I have is a MySQL server that only accepts connections f...

From [MySQLdiscussion group] 2023-10-23 08:57:18 0  2  1315

mysqldump: Couldn't find table: ";"是怎么回事？

```C:\Users\adminstrator>mysqldump -u root -p yuanbiji >g:/www/yuanbiji11.sql; Enter password: *...

From [MySQLdiscussion group] 2017-04-17 11:54:14 0  3  1310

macOS Ventura causes failure to install 'mysql2' due to 'ld: library not found for -lzlib'

Unable to install mysql2 using bundleinstall. I ask this because some websites and blogs have shown how to sol...

From [MySQLdiscussion group] 2023-11-11 08:40:10 0  2  1308

mysql for update 如果事務(wù)一直沒有提交會(huì)不會(huì)這表數(shù)據(jù)一直鎖在那里

mysql for update 鎖住了一條或多條數(shù)據(jù)，或者是整個(gè)表 如果事務(wù)一直沒有提交（比如服務(wù)器掛掉了）會(huì)不會(huì)這表數(shù)據(jù)一直鎖在那里

From [MySQLdiscussion group] 2017-04-17 16:27:28 0  1  1308

Installation issues

How do I install it? There is no 5.6 in it.

From [MySQLdiscussion group] 2019-01-11 16:38:27 0  0  1307