4 lines
		
	
	
		
			154 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			4 lines
		
	
	
		
			154 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
| ALTER TABLE `users`
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|   ADD `username` VARCHAR(255) CHARACTER SET ascii COLLATE ascii_bin DEFAULT NULL AFTER `email`,
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|   ADD UNIQUE `username` (`username`);
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