Derby 嵌入式数据库奇怪的行为，SQLSyntaxErrorException

我在 Java 项目中有一个嵌入式数据库，其中有一个表 TOOLS_IMAGES，其中有两列“TOOL_id”（int）和“TOOL_image”（blob）。我尝试使用以下代码获取 blob：

rs = stmt.executeQuery("SELECT * FROM 'TOOLS_IMAGES' WHERE 'TOOL_id' = " + id);

该程序试图以这种方式一个接一个地获得15个不同的图像。当我运行程序时，它有时会设法获得一张图像，有时是两张，有时甚至是六张，但在某一时刻它总是抛出以下异常。并且在失败之后，它会为以下每个图像引发此异常：

java.sql.SQLSyntaxErrorException: Syntax error: Encountered "\'TOOLS_IMAGES\'" at line 1, column 15.
Caused by: ERROR 42X01: Syntax error: Encountered "\'TOOLS_IMAGES\'" at line 1, column 15.

为什么我在 SQL 查询中使用撇号？我已经在没有它们的情况下尝试过，但是这里 sql 将查询中的所有小写字母转换为大写字母，并在事后抱怨它找不到该列 -.- 看起来像这样：

rs = stmt.executeQuery("SELECT * FROM TOOLS_IMAGES WHERE TOOL_id = " + id);

和

java.sql.SQLSyntaxErrorException: Column 'TOOL_ID' is either not in any table in the FROM list or appears within a join specification and is outside the scope of the join specification or appears in a HAVING clause and is not in the GROUP BY list. If this is a CREATE or ALTER TABLE  statement then 'TOOL_ID' is not a column in the target table.
Caused by: ERROR 42X04: Column 'TOOL_ID' is either not in any table in the FROM list or appears within a join specification and is outside the scope of the join specification or appears in a HAVING clause and is not in the GROUP BY list. If this is a CREATE or ALTER TABLE  statement then 'TOOL_ID' is not a column in the target table.

编辑：这是我用来创建表格的脚本

create table TOOLS_IMAGES
(
    "TOOL_id"   INTEGER not null
        constraint TOOLS_IMAGES_PK
            primary key,
    "TOOL_mask" BLOB,
    "TOOL_img"  BLOB
);