internal OracleColumn(OciStatementHandle statementHandle, int ordinal, OciErrorHandle errorHandle, OracleConnection connection)
{
this._ordinal = ordinal;
this._describeHandle = statementHandle.GetDescriptor(this._ordinal, errorHandle);
this._connection = connection;
this._connectionCloseCount = connection.CloseCount;
}
protected override DbSqlParserColumnCollection GatherTableColumns(DbSqlParserTable table)
{
OciStatementHandle stmtp = new OciStatementHandle(this._connection.ServiceContextHandle);
OciErrorHandle errorHandle = this._connection.ErrorHandle;
StringBuilder builder = new StringBuilder();
string schemaName = table.SchemaName;
string tableName = table.TableName;
DbSqlParserColumnCollection columns = new DbSqlParserColumnCollection();
builder.Append("select * from ");
if (!System.Data.Common.ADP.IsEmpty(schemaName))
{
builder.Append(schemaName);
builder.Append(".");
}
builder.Append(tableName);
string stmt = builder.ToString();
if ((TracedNativeMethods.OCIStmtPrepare(stmtp, errorHandle, stmt, OCI.SYNTAX.OCI_NTV_SYNTAX, OCI.MODE.OCI_DEFAULT, this._connection) == 0) && (TracedNativeMethods.OCIStmtExecute(this._connection.ServiceContextHandle, stmtp, errorHandle, 0, OCI.MODE.OCI_DESCRIBE_ONLY) == 0))
{
int num3;
stmtp.GetAttribute(OCI.ATTR.OCI_ATTR_PARAM_COUNT, out num3, errorHandle);
for (int i = 0; i < num3; i++)
{
string str;
OciParameterDescriptor handle = stmtp.GetDescriptor(i, errorHandle);
handle.GetAttribute(OCI.ATTR.OCI_ATTR_SQLCODE, out str, errorHandle, this._connection);
OciHandle.SafeDispose(ref handle);
str = this.QuotePrefixCharacter + str + this.QuoteSuffixCharacter;
columns.Add(null, schemaName, tableName, str, null);
}
}
OciHandle.SafeDispose(ref stmtp);
return(columns);
}
