格式：
SELECT Columns_1,Columns_2,Columns_n FROM TABLE WHERE Columns_3 LIKE ' '示例：
包含“国” SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '%国%'; “张”开头 SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '张%'; “国”在中间 SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '%国_'; “国”结尾 SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '%国'; “张”开头 两个字 SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '张_'; “张”开头 三个字 SELECT USER_ID,USER_CODE,USER_NAME FROM XY_USER WHERE USER_NAME LIKE '张__';