The number of times the table structure has been altered by SQL queries. Which major changes need to be considered? Which commands should I use to implement these modifications?

How do you ensure that user-defined functions in SQL maintain data consistency?

How many SQL alter table structure? Which major adjustments should be considered? These changes need which commands?

How would you use SQL to change a table’s structure? What general types of changesare possible? Whichcommands are used to implement these changes?

what is the difference between inner and outer join in sql?

I want to write the SQL to create the tables for the ERD attached, but I also want to add this to the tables: rental date, due date, and return date so that I can support overdue queries. I also want it so each table has primary keys and foreign keys. I want it so the tables have at least 4 rows of data. How can I do this? Thank you for your help as I learn more about SQL and table creation.

How would you alter the structure of a table with SQL? What kinds of changes are conceivable in general? Which commands are used to make these modifications?