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Mysql On Update Cascade

  In MySQL, the ON  UPDATE CASCADE  option in foreign key constraints indicates that anytime an update is made to a row in the parent table, matching rows in child tables are correspondingly updated. This  feature provides   assurance  for referential integrity and consistency of related data in a  related set of tables  without having to manage it manually. Knowing when and how to use ON  UPDATE CASCADE  is important in managing table relationships effectively and facilitating data maintenance. What is ON UPDATE CASCADE? The  ON UPDATE CASCADE  is an option that makes up a definition for a  foreign key  constraint in  MySQL . If a value in the parent table column of the  primary key   is updated, it ensures that the matching value is changed in the  foreign key  column in the  child  table. This may be done through  cascading updates , to keep relationships between related tables intact and consistent. DDL Command CREATE TABLE child_table ( child_id INT, parent_id INT, FOR

Stream Screen Lab Computer

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Module Lab Web

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IOT Lab 2 Exercise 2

  Lab Exercise 2 Lab Exercise 2 Predicting the Weather With the Barometer Reading a barometer is simple if you know what different atmospheric pressure values indicate. To understand your barometer and how atmospheric pressure is changing, interpret readings as follows (pay attention to units): High Pressure A barometric reading over 30.20 inHg is generally considered high, and high pressure is associated with clear skies and calm weather. If the reading is over 30.20 inHg (102268.9 Pa or 1022.689 mb): Rising or steady pressure means continued fair weather. Slowly falling pressure means fair weather. Rapidly falling pressure means cloudy and warmer conditions. Normal Pressure A barometric reading in the range of 29.80 and 30.20 inHg can be considered normal, and normal pressure is associated with steady weather. If the reading falls between 29.80 and 30.20 inHg (100914.4–102268.9 Pa

Submission Lab Java 2024

Submission Lab Programming CSF3034 KMA K2 ( Profesor Madya Ts. Dr. Amir bin Ngah )  Lab 1 https://forms.gle/kVC8oowqoMNTX2dg7 Lab2 https://forms.gle/7Q8kH3v9FfxoWD74A Lab3 https://forms.gle/SLSkmu3Wzw2Wjxxs5

MODUL LAB IOT

Modul Lab IOT  https://myunitechsolution.com/nextcloud/index.php/s/ZtGRiBsr8dDnHeo