Question: Error Handling in Routines

Explore how to write MySQL stored routines that validate input parameters while handling errors gracefully. Learn to use EXIT handlers, RESIGNAL, and exception propagation to ensure routines respond correctly when passed invalid customer IDs.

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Field	Type
`CustomerID`	`int`
`CustomerName`	`varchar(50)`
`Email`	`varchar(50)`
`Phone`	`varchar(15)`
`Address`	`varchar(100)`
`LastLogin`	`date`
`CreatedAt`	`timestamp`
`CustomerTier`	`enum('New','Regular','VIP')`
`ReferralID`	`int`
`LoyaltyPoints`	`int`
`LastPurchaseDate`	`date`
`IsChurnRisk`	`tinyint(1)`

1.Get Started

2.Transactions and Execution Control

3.Stored Routines

4.SQL Flow Control and Validation

5.Advanced Database Objects

6.Query Plans and Performance

7.SQL Modes and Permissions

8.Data Import and Export

9.Final Remarks

Question: Error Handling in Routines

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