Mybatis各种模糊查询
模糊查询:
工作中用到,写三种用法吧,第四种为大小写匹配查询
1. sql中字符串拼接
SELECT * FROM tableName WHERE name LIKE CONCAT(CONCAT('%', #{text}), '%');
2. 使用 ${...} 代替 #{...}
SELECT * FROM tableName WHERE name LIKE '%${text}%';
3. 程序中拼接
Java
// or String searchText = "%" + text + "%";
String searchText = new StringBuilder("%").append(text).append("%").toString();
parameterMap.put("text", searchText);
SqlMap.xml
SELECT * FROM tableName WHERE name LIKE #{text};
4. 大小写匹配查询
SELECT * FROM TABLENAME WHERE UPPER(SUBSYSTEM) LIKE '%' || UPPER('jz') || '%'
--或者是
SELECT * FROM TABLENAME WHERE LOWER(SUBSYSTEM) LIKE '%' || LOWER('jz') || '%'
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