MySQL判断多个字段并显示对应值：详解及代码示例

{"title":"MySQL判断多个字段并显示对应值：详解及代码示例","description":"本文详细介绍了如何使用MySQL语句判断多个字段的值，根据不同的条件返回相应的结果。通过CASE语句，可以实现灵活的逻辑判断，并最终显示所需的值。","keywords":"MySQL, CASE语句, 条件判断, 字段值, 逻辑判断, SQL语句, 代码示例, 数据库","content":"可以使用以下MySQL语句实现上述逻辑：\n\nsql\nSELECT \n\tCASE \n\t\tWHEN Ms_GxName0 IS NULL AND Ms_GxName1 IS NULL AND Ms_GxName2 IS NULL AND Ms_GxName3 IS NULL THEN '未开工'\n\t\tWHEN Ms_GxName0 IS NOT NULL AND Ms_GxName1 IS NULL AND Ms_GxName2 IS NULL AND Ms_GxName3 IS NULL THEN Ms_GxName0\n\t\tWHEN Ms_GxName1 IS NOT NULL THEN Ms_GxName1\n\t\tWHEN Ms_GxName2 IS NOT NULL THEN Ms_GxName2\n\t\tWHEN Ms_GxName3 IS NOT NULL THEN Ms_GxName3\n\tEND AS result\nFROM your_table;\n\n\n这里假设你的表名为your_table，你需要将其替换为你实际使用的表名。以上语句将根据条件判断四个列的值，并根据逻辑返回对应的结果。将结果命名为"result"列，可以通过该列获取最终的结果。"}