51. Sybase 
51.1. Sybase Version Support
The driver enables connectivity to Sybase Database (SAP Adaptive Server) through the TDS protocol. ASE Versions 12, 15, and 16 are supported. Connecting to Sybase SQL Anywhere or Sybase IQ are not supported in this driver.
51.2. Connection Options
51.2.1. Authentication
Property | Description |
AuthScheme | The scheme used for authentication. Accepted entries are Password, Kerberos. |
Server | The name of the server running Sybase Database. |
Port | The port of the Sybase database. |
Database | The name of the Sybase database. |
User | The Sybase user account used to authenticate. |
Password | The password used to authenticate the user. |
Charset | Chaeset name to communicate with server. |
UseSSL | This field sets whether SSL is enabled. |
AlternateServers | This property allows you to specify multiple servers in addition to the one configured in Server and Port . Specify both a server name and port; separate servers with a comma. |
51.2.2. Kerberos
Property | Description |
KerberosKDC | The Kerberos Key Distribution Center (KDC) service used to authenticate the user. |
KerberosRealm | The Kerberos Realm used to authenticate the user with. |
KerberosSPN | The service principal name (SPN) for the Kerberos Domain Controller. |
KerberosKeytabFile | The Keytab file containing your pairs of Kerberos principals and encrypted keys. |
KerberosServiceRealm | The Kerberos realm of the service. |
KerberosServiceKDC | The Kerberos KDC of the service. |
KerberosTicketCache | The full file path to an MIT Kerberos credential cache file. |
51.2.3. SSL
Property | Description |
SSLClientCert | The TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). |
SSLClientCertType | The type of key store containing the TLS/SSL client certificate. |
SSLClientCertPassword | The password for the TLS/SSL client certificate. |
SSLClientCertSubject | The subject of the TLS/SSL client certificate. |
SSLServerCert | The certificate to be accepted from the server when connecting using TLS/SSL. |
51.2.4. Firewall
Property | Description |
FirewallType | The protocol used by a proxy-based firewall. |
FirewallServer | The name or IP address of a proxy-based firewall. |
FirewallPort | The TCP port for a proxy-based firewall. |
FirewallUser | The user name to use to authenticate with a proxy-based firewall. |
FirewallPassword | A password used to authenticate to a proxy-based firewall. |
51.2.5. Logging
Property | Description |
Logfile | A filepath which designates the name and location of the log file. |
Verbosity | The verbosity level that determines the amount of detail included in the log file. |
LogModules | Core modules to be included in the log file. |
MaxLogFileSize | A string specifying the maximum size in bytes for a log file (for example, 10 MB). |
MaxLogFileCount | A string specifying the maximum file count of log files. |
51.2.6. Schema
Property | Description |
Location | A path to the directory that contains the schema files defining tables, views, and stored procedures. |
BrowsableSchemas | This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC. |
Tables | This property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC. |
Views | Restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC. |
51.2.7. Miscellaneous
Property | Description |
BatchSize | The maximum size of each batch operation to submit. |
ConnectionLifeTime | The maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed. |
ConnectOnOpen | This property species whether to connect to the Sybase when the connection is opened. |
EncryptPassword | This field sets whether password encryption is enabled. |
IgnoreGroupNumber | Whether to return group number (like ';num') of procedure when list procedures. |
MaxRows | Limits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time. |
MaxTDSPacketSize | The protocol sending and receiving buffer size. For the lower version, it's from 512 to 512. For the newer version, it's from 512 to 2048. |
Other | These hidden properties are used only in specific use cases. |
PoolIdleTimeout | The allowed idle time for a connection before it is closed. |
PoolMaxSize | The maximum connections in the pool. |
PoolMinSize | The minimum number of connections in the pool. |
PoolWaitTime | The max seconds to wait for an available connection. |
QueryPassthrough | This option passes the query to the Sybase server as is. |
Readonly | You can use this property to enforce read-only access to Sybase from the provider. |
RTK | The runtime key used for licensing. |
SwitchMode | This property allows you to specify a switching mode to select a server from AlternateServers as the active server. |
SwitchStrategy | This property allows you to specify a switching strategy to select a server from AlternateServers as the active server. |
Timeout | A timeout for the provider. |
UseConnectionPooling | This property enables connection pooling. |