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甲骨文參數化查詢所以這是我一直得到的錯誤：ORA-01036：非法的變量名/編號從.net
所有我做的是試圖用這些值來更新表。值不爲空，參數中的每個變量都有值。
Query在Oracle（不帶參數）中執行得很好，但是當我添加參數時，它會給出ORA-01036：非法變量名稱/編號。
我已經試過幾乎所有東西，但沒有運氣！
using (OracleConnection con = new OracleConnection(cs))
{
const string query =
@"UPDATE ASSOCIATED_CENTERS_INFO
SET DIS_ASSOCIATED_BY = (SELECT ID FROM VC_ADMINISTRATORS WHERE USERNAME = ':USER'),
DIS_ASSOCIATION_DATE = SYSDATE,
ACTIVE_YN = 'N',
NOTES = CONCAT(NOTES, '<br>' || SYSDATE || ' ' || (SELECT FIRSTNAME || ',' || LASTNAME FROM VC_ADMINISTRATORS WHERE USERNAME = ':USER') || ': ' || ':COMMENT')
WHERE OSC_ID = :OSCID AND ASSOCIATED_OSC_ID = :ASSOCIATEDOSCID;";
OracleCommand cmd = new OracleCommand(query, con);
cmd.CommandType=CommandType.Text;
cmd.Parameters.AddWithValue(":USER", userName);
cmd.Parameters.AddWithValue(":COMMENT", comment);
cmd.Parameters.AddWithValue(":OSCID", selectedIdOnMap);
cmd.Parameters.AddWithValue(":ASSOCIATEDOSCID", selectedIdOnListBox);
con.Open();
cmd.ExecuteNonQuery();
}