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			9 lines
		
	
	
		
			360 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			9 lines
		
	
	
		
			360 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
-- set default
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alter table tbl_name alter col_name set default 3;
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alter table tbl_name alter col_name set default USER;
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alter table tbl_name alter col_name set default CURRENT_USER;
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alter table tbl_name alter col_name set default SESSION_USER;
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alter table tbl_name alter col_name set default SYSTEM_USER;
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alter table tbl_name alter col_name set default NULL;
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