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Cassandra Oledb Provider Sample crashes
- eugeneng
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9 years 4 months ago #10983
by eugeneng
Cassandra Oledb Provider Sample crashes was created by eugeneng
HI, recently I downloaded and installed the trial version of Cassandra Oledb Provider. when I try to run the C# sample, it crashes at :
file : 02_SimpleQuery.cs
line 24
public static int Sample02_SimpleQuery(OleDbConnection conn)
{
ConsoleWriteSampleHeader("[Sample 2.1] Getting records from database using OleDbDataReader.");
String lastStmt = "";
try
{
// Read records from pgnp_samples.contact table.
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = lastStmt = "SELECT \"FirstName\",\"LastName\",active,\"HireDate\" FROM \"CasoTestEmployee\" LIMIT 5;";
[color=#FF4040:1bhf9q42] OleDbDataReader reader = cmd.ExecuteReader(); <
Crashes here!![/color:1bhf9q42]
with System Access Violation exception: {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."}
and I received similar error when I tried to use SSIS to import 10 rows of record into Cassandra database.
is this the limitation of the trial version?
file : 02_SimpleQuery.cs
line 24
public static int Sample02_SimpleQuery(OleDbConnection conn)
{
ConsoleWriteSampleHeader("[Sample 2.1] Getting records from database using OleDbDataReader.");
String lastStmt = "";
try
{
// Read records from pgnp_samples.contact table.
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = lastStmt = "SELECT \"FirstName\",\"LastName\",active,\"HireDate\" FROM \"CasoTestEmployee\" LIMIT 5;";
[color=#FF4040:1bhf9q42] OleDbDataReader reader = cmd.ExecuteReader(); <
Crashes here!![/color:1bhf9q42]
with System Access Violation exception: {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."}
and I received similar error when I tried to use SSIS to import 10 rows of record into Cassandra database.
is this the limitation of the trial version?
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9 years 4 months ago #10987
by Moderator
Replied by Moderator on topic Re: Cassandra Oledb Provider Sample crashes
No, probably not. What is Cassandra version you use?
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- eugeneng
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9 years 4 months ago #11038
by eugeneng
Replied by eugeneng on topic Re: Cassandra Oledb Provider Sample crashes
[cqlsh 4.1.0 | Cassandra 2.0.4 | CQL spec 3.1.1 | Thrift protocol 19.39.0]
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9 years 4 months ago #11088
by Moderator
Replied by Moderator on topic Re: Cassandra Oledb Provider Sample crashes
We have fixed the Cassandra provider and updated C# Samples (
www.pgoledb.com/index.php?option
... &Itemid=68
)
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