SQL 语句在工具中有效，但在 Java 中无效，使用 JDBC

Question

我正在使用下面的 SQL 查询从数据库中获取一些数据。我使用的 DBMS 是 H2，一个原生的 java 实现。尽管我可以使用 H2 工具检索所述数据，但当我将它用作 JAVA 中的 PreparedStatement 时，它会给我以下错误：

"; expected ")"; SQL statement: ...

SELECT * FROM (
   SELECT temp.*, ROW_NUMBER() OVER (PARTITION BY horseid ORDER BY updated desc) as num
   FROM(
   select horseid, name, breed, min_speed, max_speed, updated from horsehistory
   UNION
   select id, name, breed, min_speed, max_speed, updated from horse
   ) as temp
   WHERE updated<? AND horseid in ?
)
WHERE num = 1;

我试过使用换行符、带行分隔符的 stringbuilder 都无济于事。

StringBuilder sb= new StringBuilder();
    appendString(sb, "SELECT * FROM (");
    appendString(sb, "SELECT temp.*, ROW_NUMBER() OVER (PARTITION BY horseid ORDER BY updated desc) AS num");
    appendString(sb, "FROM(");
    appendString(sb, "SELECT horseid, name, breed, min_speed, max_speed, updated FROM horsehistory");
    appendString(sb, "UNION");
    appendString(sb, "SELECT id, name, breed, min_speed, max_speed, updated FROM horse");
    appendString(sb, ") AS temp");
    appendString(sb, "WHERE updated < ? AND horseid IN ?");
    appendString(sb, ")");
    appendString(sb, "WHERE num = 1;");
    String sql=sb.toString();

appendString 函数只是向字符串追加一个换行符。我在 preparedstatement

中使用它

我做错了什么？

编辑：这是有问题的完整错误

Syntax error in SQL statement "SELECT * FROM ( SELECT TEMP.*, ROW_NUMBER() OVER (PARTITION[*] BY        HORSEID ORDER BY UPDATED DESC) AS NUM FROM ( SELECT HORSEID, NAME, BREED, MIN_SPEED, MAX_SPEED, UPDATED FROM HORSEHISTORY UNION SELECT ID, NAME, BREED, MIN_SPEED, MAX_SPEED, UPDATED FROM HORSE ) AS TEMP WHERE UPDATED < ? AND HORSEID IN (?) ) WHERE NUM = 1  "; expected ")";

PARTITION后有一个[*]。这是否意味着错误发生在那里？

Answer 1

啊，您正在使用 H2，感谢您添加该标志。 H2 似乎不支持 PARTITION。 See here

Answer 2

您必须将数组参数 ? 括在括号中：

... horseid IN (?) ...

SQL 语句在工具中有效，但在 Java 中无效，使用 JDBC

SQL statement working in tool but not in Java using JDBC

java

sql

jdbc

h2

prepared-statement