android.database.sqlite.SQLiteException: no such column: id_card (Sqlite code 1 SQLITE_ERROR): , while compiling: SELECT * FROM user WHERE id_card = ?, (OS error - 2:No such file or directory) 安卓数据查询错误
时间: 2024-04-23 12:26:03 浏览: 32
这个错误是因为在user表中没有名为id_card的列,导致查询操作执行失败。你需要检查一下user表的结构,确认是否存在id_card列。如果不存在,你需要添加该列或修改查询语句。如果已经存在该列,那么可能是查询语句中的表名或列名拼写错误或大小写不对。你需要仔细检查一下查询语句,并确认所有的表名和列名都是正确的。另外,错误信息中提到了OS error - 2:No such file or directory,这可能是由于数据库文件不存在或无法打开导致的,你需要确保数据库文件存在且具有正确的权限。
相关问题
android.database.sqlite.SQLiteException: no such table: rundata (code 1 SQLITE_ERROR): , while compiling:
This error indicates that the SQLite database you are trying to query does not contain a table named "rundata". This could be due to a few reasons:
1. The table has not been created yet: Make sure you have executed the SQL query to create the "rundata" table before trying to query it.
2. The table was deleted: If you or your application deleted the "rundata" table, you will need to recreate it before querying it again.
3. The table was renamed: If the "rundata" table was renamed, make sure you are querying the correct table name.
4. The table is in a different database: If the "rundata" table is in a different database than the one you are currently querying, you will need to connect to that database first before querying the table.
You can check if the "rundata" table exists in your database by running the following query:
```
SELECT name FROM sqlite_master WHERE type='table' AND name='rundata';
```
This will return the name of the table if it exists in your database.
android.database.sqlite.SQLiteException: near "&": syntax error (code 1 SQLITE_ERROR): , while compiling: SELECT * FROM drafts WHERE book_id1=? && title like ?
这个错误通常是由 SQL 语法错误引起的。在你的 SQL 语句中,使用了 `&&` 运算符,但是 SQLite 不支持这个运算符,正确的运算符是 `AND`。
你需要将你的 SQL 语句修改为:
```
SELECT * FROM drafts WHERE book_id1=? AND title like ?
```
这样就可以避免这个错误了。