mysql-5.6

问题 I have a custom app that required MySql 5.6. I was able to install MySql 5.7 on ubuntu 20.04 using this tutorial: https://askubuntu.com/a/1232993 How can I install MySql 5.6 on ubuntu 20.04? Because the above tutorial only works for MySql 5.7, and I didn't find any working solution online. Can MySql 5.6 run on Ubuntu 20.04? Should I downgrade the OS to Ubuntu 18.04? 回答1: To install mysql 5.6.48 in Ubuntu 20: Download mysql from here unzip the tar file and install tar xvf mysql-server_5.6.48

问题 I have a custom app that required MySql 5.6. I was able to install MySql 5.7 on ubuntu 20.04 using this tutorial: https://askubuntu.com/a/1232993 How can I install MySql 5.6 on ubuntu 20.04? Because the above tutorial only works for MySql 5.7, and I didn't find any working solution online. Can MySql 5.6 run on Ubuntu 20.04? Should I downgrade the OS to Ubuntu 18.04? 回答1: To install mysql 5.6.48 in Ubuntu 20: Download mysql from here unzip the tar file and install tar xvf mysql-server_5.6.48

问题 I have been getting this error message from mySQL "Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Editor and reconnect. " The query I use is this: UPDATE table1 a INNER JOIN table2 asa ON a.ID = asa.Table1Id SET a.ReferenceID = asa.ReferenceID WHERE a.ID > 0 AND asa.ID > 0 I do have where clauses for both tables on IDs which are Primary key for both tables.

问题 MySQLdb: cursor.query( 'select * from %s;', ('thistable',) ) should end up as: 'select * from thistable' actually ends up as: "select * from 'thistable' " the db natually throws syntax error: ...near ' 'thistable' ' at ... It behaves as though the data converter is including the string's quotes as part of the string, ie the string is " 'thistable' " instead of 'thistable'. Any and all help with this is deeply appreciated. One thing I did notice in my questing is that the script's charset is

来源： https://stackoverflow.com/questions/63822710/why-did-adding-an-index-to-a-table-in-mysql-5-6-cause-a-deadlock

来源： https://stackoverflow.com/questions/63822710/why-did-adding-an-index-to-a-table-in-mysql-5-6-cause-a-deadlock

问题 I have a MySQL alter statement ALTER TABLE `employee` ADD `employee_name_generator` CHAR(20) GENERATED ALWAYS AS (COALESCE(concat(`employee_name`), '^')) VIRTUAL; This is needed for adding employee_name_generator in a unique constraint. This works fine in MySQL 5.7 onwards. But the environment where I need this has MySQL 5.6. Is there an alternative for MySQL 5.6? 回答1: If your earlier version of MySQL does not support generated columns, then you'll have to compute that column at the time you

问题 Delighted to see that you have rolled out 2nd generation cloud SQL in Beta. However, I see that it is not available yet to GAE projects. Can you estimate when this link will be enabled please? We are making some big infrastructural changes in our fancy system necessitated by the slowness of Generation 1 SQL, but will stick with cloud SQL if the change is not far off. 回答1: You can now connect to second generation Google Cloud SQL instances from App Engine apps. The connection string is

问题 I had an error like the following Field 'STATE_REGION' - Field Name doesn't have a default value in MySQL 5.6. I fixed the issue by changing sql_mode = ''; in previous version of MySQL But failed in MySQL 5.6 How to fix this issue in MySQL 5.6. Please help any help is much appreciated. 回答1: Got Solution To my Problem Just add IGNORE after INSERT INSERT IGNORE INTO tblname(.... "INSERT IGNORE" vs "INSERT ... ON DUPLICATE KEY UPDATE" Thanks:) 来源： https://stackoverflow.com/questions/22978875/how

问题 I have a table which has Ids as primary key with auto increment (random value) but has duplicates entries while checking the data from other columns, now need to delete those duplicate entries. I have tried using distinct, MySQL 5 doesn't have rownum, so didn't try with rownum. Currently, data is like this Id Col1 1anx A css2 B 3xcs B cd4v C xcv5 D czv6 D I want data to be like this: Id Col1 1anx A css2 B cd4v C xcv5 D 回答1: As an alternative to ROW_NUMBER , we can try using a join to a