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Get exact match count in mysql text field

I have a MySql table with text fields. The text field will be populated with a random sequence similar to the ...

From [MySQLdiscussion group] 2023-09-09 10:37:09 0  1  1010

mysql - "SELECT 1 UNION SELECT null UNION SELECT !1"的含義

{代碼...} 的含義是什么？是選擇空集的意思？

From [MySQLdiscussion group] 2017-04-17 11:18:27 0  1  1010

It is recommended that phpstudy's mysql be upgraded to version 5.7

It is recommended that phpstudy's mysql be upgraded to version 5.7. The current version is still version 5.5. ...

From [MySQLdiscussion group] 2018-12-18 11:25:15 0  0  1009

What is the best way to connect Flutter with a MySQL database?

How to connect Flutter to a MySQL database is the best way, is it safe to put the connection string in it, and...

From [MySQLdiscussion group] 2023-08-16 17:38:23 0  1  1008

mysql - sql query statistics

![I need to count the U and A corresponding to each layerid. For example, HYD_NET_LN U 5 A 10 HYD_VAL_PT U 8 A...

From [MySQLdiscussion group] 2017-05-18 10:53:38 0  5  1008

mysql - tens of millions of data paging, when the offset turns out to be larger, how to optimize the speed?

Taking mysql as an example, when the amount of data is generally large, the offset will be larger when paging,...

From [MySQLdiscussion group] 2017-05-18 10:48:01 0  2  1007

Troubleshooting: Error 111 - Unable to connect to MySQL server

I have a MySQL server installed on a Linux host with the IP address 192.168.1.100, but when I try to connect t...

From [MySQLdiscussion group] 2023-08-02 20:16:12 0  2  1006

Is there a length limit to self-growth?

The maximum value of SQL is not more than 60,000. What should I do if the self-growth exceeds this value?

From [MySQLdiscussion group] 2020-07-04 11:10:00 0  0  1005

How to use JDBC in Java to implement continuous updates of the database server without increasing RAM consumption

I'm writing a fighting game in JavaFX, using JDBC to update information into a MySQL database. Most tasks that...

From [MySQLdiscussion group] 2023-09-07 20:10:29 0  1  1005

LINQ 為什么要延遲執(zhí)行？

int[] scores = { 10, 90, 100, 30, 70, 29, 45 };  v...

From [MySQLdiscussion group] 2016-11-07 15:05:40 0  1  1005

MySQL: Display daily count of rows created using inner join?

I have a user and user_data table. I'm trying to display registrations by created_at and group them by today's...

From [MySQLdiscussion group] 2023-09-11 00:12:00 0  1  1004

python - flask-sqlalchemy How to set fields in json format

flask-sqlalchemy How to set fields in json format

From [MySQLdiscussion group] 2017-05-18 10:47:02 0  1  1004

How to group and count in MySQL?

I'm trying to write a query that extracts the total number of undeleted messages sent to friends. Here is a sc...

From [MySQLdiscussion group] 2024-04-06 18:30:17 0  1  1003

mysql關(guān)系數(shù)據(jù)庫(kù)，實(shí)現(xiàn)刪除記錄是用邏輯刪除還是物理刪除？

比如，訂單和商品的關(guān)系；訂單正常來說，應(yīng)該會(huì)將商品的（名字、價(jià)格等等）字段另外保存；如果我需要?jiǎng)h除商品記錄，使用物理刪除也不會(huì)影響訂單的信息；但是這樣會(huì)出現(xiàn)其他問題嗎？

From [MySQLdiscussion group] 2016-11-05 11:02:12 0  1  1003

mysql - Alibaba Cloud virtual host problem

HSFTimeOutException-Timeout waiting for task. ERR-CODE: [HSF-0002], Type: [Business Problem], More: [http://co...

From [MySQLdiscussion group] 2017-05-18 10:53:01 0  1  1002