[英]sql server 2008 ,PreparedStatement jdbc to fetch multiple queries
給出錯誤:com.microsoft.sqlserver.jdbc.SQLServerException:語句未返回結果集。
CREATE PROCEDURE getDetails(@n varchar(50) OUT,@c varchar(50) OUT,@i INT OUT)
as
BEGIN
SELECT @n=product.name,@c=product.code,@i=product.id FROM product;
END;
try
{
Connection con =LoginConnection.getConnection();
CallableStatement stmt=con.prepareCall("{call getDetails(?,?,?)}");
stmt.registerOutParameter(1, Types.VARCHAR);
stmt.registerOutParameter(2, Types.VARCHAR);
stmt.registerOutParameter(3, Types.INTEGER);
ResultSet resultSet = stmt.executeQuery();
while(resultSet.next())
{
System.out.println("value 1:"+resultSet.getString(1));
System.out.println("value 2:"+resultSet.getString(2));
System.out.println("Value 3:"+resultSet.getInt(3));
}
con.close();
}
catch(Exception e)
{
System.out.println("ex:"+e);
}
該語句未返回結果集。
那是真實的。 步驟
CREATE PROCEDURE getDetails
(
@n varchar(50) OUT,
@c varchar(50) OUT,
@i INT OUT
) AS
BEGIN
SELECT @n=product.name,@c=product.code,@i=product.id FROM product;
END;
將不會返回結果集。 它將僅從表的單行(SELECT語句返回的最后一行)返回三個標量OUT參數值。 如果要存儲過程返回結果集,則
ALTER PROCEDURE getDetails
AS
BEGIN
SELECT product.name, product.code, product.id FROM product;
END;
並使用此Java代碼
CallableStatement stmt = con.prepareCall("{call getDetails}");
ResultSet resultSet = stmt.executeQuery();
while (resultSet.next()) {
System.out.println("ProductName: " + resultSet.getString(1));
System.out.println("ProductCode: " + resultSet.getString(2));
System.out.println(" ProductID: " + resultSet.getInt(3));
}
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