## RADIANS() 

Section 12.6.2, “Mathematical Functions” 

## RAND() 

Section 17.2.1.1, “Advantages and Disadvantages of Statement-Based and Row-Based Replication” Section 13.1.17, “CREATE PROCEDURE and CREATE FUNCTION Statements” Section 17.2.1.3, “Determination of Safe and Unsafe Statements in Binary Logging” Section 8.2.1.20, “Function Call Optimization” Section 12.6.2, “Mathematical Functions” Section 17.5.1.14, “Replication and System Functions” Section 5.1.8, “Server System Variables” Section 8.9.2, “Switchable Optimizations” 

## RANDOM_BYTES() 

Section 12.14, “Encryption and Compression Functions” 

## RANK() 

Section 1.3, “What Is New in MySQL 8.0” Section 12.21.1, “Window Function Descriptions” 

## read_firewall_group_allowlist() 

Section 6.4.7.4, “MySQL Enterprise Firewall Reference” 

## read_firewall_groups() 

Section 6.4.7.4, “MySQL Enterprise Firewall Reference” 

## read_firewall_users() 

Section 6.4.7.4, “MySQL Enterprise Firewall Reference” 

## read_firewall_whitelist() 

Section 6.4.7.4, “MySQL Enterprise Firewall Reference” 

## REGEXP_INSTR() 

Section 12.8.2, “Regular Expressions” Section 1.3, “What Is New in MySQL 8.0” 

## REGEXP_LIKE() 

Section 3.3.4.7, “Pattern Matching” Section 12.8.2, “Regular Expressions” Section 5.1.8, “Server System Variables” Section 1.3, “What Is New in MySQL 8.0” 

## REGEXP_REPLACE() 

Section 12.8.2, “Regular Expressions” Section 1.3, “What Is New in MySQL 8.0” 

## REGEXP_SUBSTR() 

Section 12.8.2, “Regular Expressions” Section 1.3, “What Is New in MySQL 8.0” 

