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StringBuffer str = new StringBuffer("select * from menu where parentid=1 and mid <>1 order by parentid");

List list = new ArrayList();
ResultSet rst = null;
DataBaseConnection dbc = null;
PreparedStatement pstm = null;

try {
dbc = new DataBaseConnection();
pstm = dbc.getConnection().prepareStatement(str.toString());

rst = dbc.query(pstm);

while(rst.next()){
System.out.println(rst.getString("name"));
}


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try {
dbc = new DataBaseConnection();
pstm = dbc.getConnection().prepareStatement(str.toString());
rst = pstm.executeQuery();
while(rst.next()){
System.out.println(rst.getString("name"));
}

public ResultSet query(PreparedStatement pstm) throws SQLException,
Exception {

this.rst = pstm.executeQuery();
return rst;
}

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public ResultSet query(PreparedStatement pstm) throws SQLException,
Exception {
    return pstm.executeQuery();
}

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ÇóÒ»¸öSQLÓï¾ä - MS-SQL Server / »ù´¡Àà

×Ö¶Î1,×Ö¶Î2.....×Ö¶ÎN,Status,ParentID
1,Name1....test1,1,99
1,Name1....test1,3,99
1,Name2....test2,1,101
1,Name2....test2,3,101
1,Name3....test3,2,101
1,Name1....test1,4,101
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1,Na ......

sql ÎÊÌâ - MS-SQL Server / »ù´¡Àà

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select o_customer,o_price from orders having o_price >=avg(o_price)
select o_customer,o_price from orders where o_price >=(select avg(o_price) from orders)
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