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How to truncate a foreign key constrained table?
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As per mysql documentation, TRUNCATE cannot be used on tables with foreign key relationships. There is no complete alternative AFAIK.
Dropping the contraint still does not invoke the ON DELETE and ON UPDATE.
The only solution I can...
TaifunWiFi 拓展：WiFi Manager WiFi管理器扩展 · App Inventor 2 中文网
...回当前设备的Android API级别。
ConnectSSID 连接网络(SSID,密码)
连接到指定的SSID（服务集标识符）。适用于Android >= 10。
使用新的点对点API来引导配置辅助设备，该API从Android 10开始可用。此API需要WRITE_SETTINGS权限。
DisconnectSSID...
How do I add more members to my ENUM-type column in MySQL?
... do not appear in your ENUM. What is the output of the following command?
SELECT DISTINCT country FROM carmake;
ANOTHER EDIT: What is the output of the following command?
SHOW VARIABLES LIKE 'sql_mode';
Is it STRICT_TRANS_TABLES or STRICT_ALL_TABLES? That could lead to an error, rather than the ...
How to convert SQL Query result to PANDAS Data Structure?
...sql
cnxn = pyodbc.connect(connection_info)
cursor = cnxn.cursor()
sql = "SELECT * FROM TABLE"
df = psql.frame_query(sql, cnxn)
cnxn.close()
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XAMPP - MySQL shutdown unexpectedly
...Windows has built-in folder versioning — right click on /mysql/data/ and select Restore previous versions. You can then delete the current contents of the folder and replace it with the older version's contents.
Addendum: To ensure that you don't forget to run XAMPP as an administrator you can ri...
Importing from builtin library when module with same name exists
... f.close()
except:
pass
Example
I wanted to import mysql.connection, but I had a local package already called mysql (the official mysql utilities). So to get the connector from the system mysql package, I replaced this:
import mysql.connector
With this:
import sys
from my...
Homebrew: List only installed top level formulas
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Thanks! However this does show mysql as if it's not required by anything while it's actually required on my system by mysql-connector-c++. Do you happen to know if this is intentional (like if brew is keeping which formulae is installed directly not only i...
Return rows in random order [duplicate]
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SELECT * FROM table
ORDER BY NEWID()
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What is the difference between single and double quotes in SQL?
...ould be more readable as product_id, so you use either of the following:
SELECT PRODUCT.id AS product_id
SELECT PRODUCT.id 'product_id'
Either works in Oracle, SQL Server, MySQL… but I know some have said that the TOAD IDE seems to give some grief when using the single quotes approach.
You do...
MySQL stored procedure vs function, which would I use when?
...d procedures with ordinary SQL, whilst with stored function you can.
e.g. SELECT get_foo(myColumn) FROM mytable is not valid if get_foo() is a procedure, but you can do that if get_foo() is a function. The price is that functions have more limitations than a procedure.
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