java.sql.SQLException : ORA-00933: SQL command not properly ended Error with LIKE Sql Query

Question

我正在使用 jdbc。我在以下准备好的语句中遇到异常

  PreparedStatement pstmt=con.prepareStatement("select * from customer where INITIALIZED=1 && FILE_NAME LIKE ?");
  //filename is string
  pstmt.setString(1, "%" + filename + "%");
  rs=pstmt.executeQuery();

我收到以下错误

  016-06-01 18:59:55 ERROR DatabaseUtils:276 - java.sql.SQLException: ORA-00933: SQL command not properly ended

Exception in thread "main" java.lang.NullPointerException
at pe.entel.DatabaseInsertionandRetrieving.LocalDatabaseTransactImpl.retrievewithfilename(LocalDatabaseTransactImpl.java:279)
at pe.entel.DatabaseInsertionandRetrieving.LocalDatabaseTransactImpl.main(LocalDatabaseTransactImpl.java:287)

Answer 1

问题是您的查询有语法错误。 在 SQL 中，您需要使用 AND 而不是 &&，如下所示:

// Introduced sql only for a better reading
String sql = "select * from customer where INITIALIZED=1 AND FILE_NAME LIKE ?";
PreparedStatement pstmt = con.prepareStatement(sql);