Toad Data Studio 1.1 - User Guide

Manage Connections

Troubleshoot SQL Server® Issues

Create ODBC Connections

Toad Data Studio allows you to create a connection to a database that supports an ODBC 3.0 or later driver. ODBC connectivity provides basic querying capability, but may not be as full-featured as a native connection in Toad. For a list of databases tested with the ODBC provider, see the Release Notes.

This form of connectivity allows connections to databases such as Netezza, IBM iSeries, Ingres, and Vertica.

Note: Distinct values are not available in Code Completion for ODBC connections.

To troubleshoot connection issues for databases tested with the ODBC provider, click here.

DSN Architecture (Bitness) Must Match Toad

To create a successful ODBC connection, the architecture (bitness) of the driver in the specified DSN must match the architecture (bitness) of Toad.

To create an ODBC connection

Click on the toolbar (ALT+F+N+O).
Select ODBC Generic from the Group list box.
Use data source name—Select to display data source names. Clear this check box if you want to display the driver names.
To create a data source to use in this connection, click in the Data Source Name field. Then click Add.
Select an ODBC driver from the list, and click Finish.

Note: If creating an Oracle ODBC connection, select the ODBC driver provided by Oracle. The Microsoft ODBC for Oracle driver has less functionality than the driver provided by Oracle.
Specify the configuration properties required for the database in the Windows configuration dialog.

Notes:
- If you have an Oracle database with Unicode data, make sure to select Force SQL_WCHAR Support on the Workarounds tab of the windows Oracle ODBC Configuration dialog. If you do not, you will not be able to see the data.
- If creating a MySQL ODBC connection to use in a cross-connection query, you must specify a database in the Windows MySQL ODBC Configuration dialog. See Troubleshoot MySQL Issues for more information.

Specify the connection properties in the Create New Connection dialog. Review the following for additional information:

General
Data source name	Select the driver or data source name you added in the previous steps.
User	Enter the user name to use when connecting.
Password	Enter the password to use when connecting. Tip: After connecting, you can set a master password to further secure your connection in Tools \| Options\| Environment \| Security.
Database	Select a database or schema. Click to create a temporary connection and display available databases/schemas in the drop-down list.
Information
Data Source Name	Displays the selected driver or data source name.
Driver	Displays the ODBC driver associated with the data source.
Advanced
Default Table Column	Specify default options to use when creating a new table. Column type—Select the default data type to use when creating a table. Column length—For the selected column type, enter a default column length to use.
Advanced Options	Block Cursor Size—Specify the number of rows to return in a single fetch of data from the result set. Disable multi-threading—Multi-threading is disabled by default. Enable multi-threading only if supported by the driver. Multi-threading can improve performance, but can also result in unpredictable behavior if not supported by the driver. Default: Selected
Category	(Optional) Select an existing category or create a new one. See Set Connection Categories for more information.

Click Connect to connect immediately while saving the connection information. Optionally, click Save to save the connection without connecting.

Tip: Connections are stored in the connections.xml file and can be found by clicking the Application Data Directory link in Help | About.

Tips for Working with ODBC Connections

Tip	Description
Filter DSN by bitness	To filter Data Source Names displayed in the New Connection dialog by the bitness of Toad, go to Tools \| Options \| Database \| ODBC.
Cache object metadata	To cache object metadata for ODBC connections and retain it between sessions, go to Tools \| Options \| Database \| ODBC and select to enable disk caching. Cached object metadata is retained until manually refreshed.
Refresh object metadata	To refresh object metadata for all ODBC connections, in the Object Explorer right-click an object and select Refresh All. Right-click an object and select Refresh Schema to refresh only objects in that schema.

Tip

Description

Filter DSN by bitness

To filter Data Source Names displayed in the New Connection dialog by the bitness of Toad, go to Tools | Options | Database | ODBC.

Cache object metadata

To cache object metadata for ODBC connections and retain it between sessions, go to Tools | Options | Database | ODBC and select to enable disk caching.

Cached object metadata is retained until manually refreshed.

Refresh object metadata

To refresh object metadata for all ODBC connections, in the Object Explorer right-click an object and select Refresh All.

Right-click an object and select Refresh Schema to refresh only objects in that schema.

ODBC Features

Feature	Description
Bypass schema/instance selection in SQL Editor	For ODBC connections, in the SQL Editor you can bypass selecting a schema/instance and specify this information through the script instead. This is useful if your script executes SQL against multiple schemas. To use this method, select I will set schema/instance in the script from the schema/instance drop-down list in the SQL Editor window. Then specify the schema/instance through your script. Note: When this option is selected, some code completion features, object actions, and object information tool tips are unavailable for this SQL Editor window.

Feature

Description

Bypass schema/instance selection in SQL Editor

For ODBC connections, in the SQL Editor you can bypass selecting a schema/instance and specify this information through the script instead. This is useful if your script executes SQL against multiple schemas.

To use this method, select I will set schema/instance in the script from the schema/instance drop-down list in the SQL Editor window. Then specify the schema/instance through your script.

Note: When this option is selected, some code completion features, object actions, and object information tool tips are unavailable for this SQL Editor window.

Click here to view a video about creating connections in Toad Data Studio

Related Topics

Create Oracle Connections

You can create a new connection, or connect to an existing connection from the Create New Connection window. See Troubleshoot Oracle Issues for more information about troubleshooting connection issues.

Click here to view a video about creating connections in Toad Data Studio

Tip: You can configure Toad Data Studio to accept connection information from Toad for Oracle. See Add Connection Parameters to Open Toad Data Studio from Toad for Oracle for more information.

Client Connection or Direct Connection

You can connect to your database using a native Oracle database provider in Toad using one of the following methods:

Connection Method	Advantages	Disadvantages
Client connection Client tab—Uses an installed Oracle Client or Oracle Instant Client to establish a connection to the database from Toad.	Supports LDAP See Configure Oracle LDAP Support for more information about configuring the Oracle client to use LDAP.	Requires an Oracle client Note: Toad supports Oracle clients and Oracle Instant clients using version 9i or later.
Direct connection Direct Connect tab—Uses TCP/IP to connect directly to the database.	Does not require an installed Oracle Client Recommended for connecting to Oracle 8i databases	This method only supports common data types. Some advanced Oracle object types cannot be retrieved when connecting using this method. This method does not support LDAP. (To connect using LDAP, use the Client Connection method instead.) This method cannot be used in a cross-connection query.
Note: Quest recommends using one of the methods described in this table to connect to Oracle rather than an ODBC driver. Because ODBC connectivity is generic, it is not full-featured and may not be as robust as the fully exploited native database provider.

Connection Method

Advantages

Disadvantages

Client connection

Client tab—Uses an installed Oracle Client or Oracle Instant Client to establish a connection to the database from Toad.

Supports LDAP

See Configure Oracle LDAP Support for more information about configuring the Oracle client to use LDAP.

Requires an Oracle client

Note: Toad supports Oracle clients and Oracle Instant clients using version 9i or later.

Direct connection

Direct Connect tab—Uses TCP/IP to connect directly to the database.

Does not require an installed Oracle Client

Recommended for connecting to Oracle 8i databases

This method only supports common data types. Some advanced Oracle object types cannot be retrieved when connecting using this method.

This method does not support LDAP. (To connect using LDAP, use the Client Connection method instead.)

This method cannot be used in a cross-connection query.

Note: Quest recommends using one of the methods described in this table to connect to Oracle rather than an ODBC driver. Because ODBC connectivity is generic, it is not full-featured and may not be as robust as the fully exploited native database provider.

Data Types Supported

Toad supports both the 32-bit and the 64-bit versions of the Oracle Client. The following table identifies which Oracle data types are supported for each client type.

Data Type	Supported Using 32-Bit Client	Supported Using 64-Bit Client
CHAR
VARCHAR2 and VARCHAR
NCHAR and NVARCHAR2
LONG
NUMBER
DATE
TIMESTAMP
BLOB
CLOB
NCLOB
BFILE
RAW, LONG RAW
ROWID
XMLType ^{1, 2}
SDO_GEOMETRY
VARRAY
Nested Table
User-Defined

Table Notes:

An XMLType that uses an XML schema is supported, but only when using Oracle Client 11.2 or later.
XMLType data that is stored as binary XML is not supported.

Configure the Oracle Instant Client

The Oracle Instant client installs only those files needed to connect to your database using OCI. Because this client does not write to the registry (no ORACLE_HOMES) or add to the environmental path, you must manually set environment variables so the client can be used with Toad.

To configure the Oracle Instant Client to work with Toad

Save the Oracle Instant Client files in any location on the computer where Toad is installed.
On your Windows desktop, right-click My Computer and select Properties.
Select the Advanced tab and click Environment Variables.

Click New under System Variables and complete the following:

Variable name	Variable Value
PATH	<Path where Instant Client is installed>;%PATH% For Example: C:\Program Files\OracleInstantClient;%PATH%
TNS_ADMIN	<Path where tnsnames.ora file is installed>

Variable name

Variable Value

PATH

<Path where Instant Client is installed>;%PATH%

For Example: C:\Program Files\OracleInstantClient;%PATH%

TNS_ADMIN

<Path where tnsnames.ora file is installed>

To use the Oracle Instant Client connection in a cross-connection query, you must also install an Oracle ODBC driver. (While the Oracle Client full install includes an ODBC driver, the Oracle Instant Client does not.)

Note: You cannot use an Oracle Direct Connection in a cross-connection query.

Create an Oracle Connection

To create an Oracle connection

Click on the toolbar (ALT+F+N).
Select Oracle from the Group list box.

Review the following for additional information:

Login Tab	Description
Database name	Select the alias to use when connecting. This list displays aliases from LDAP, as well as any local tnsnames.ora file. When you initially open the connection dialog, Toad retrieves the list of LDAP names from the LDAP server. Toad caches this list and displays it upon subsequent requests, within one Toad session. To refresh the list, click . Note: If you do not select a database, Toad uses the ORACLE_SID for the selected home. If an ORACLE_SID value does not exist and you do not specify a database, you cannot connect.
Password	Enter the password to use when connecting. Tip: After connecting, you can set a master password to further secure your connection in Tools \| Options\| Environment \| Security.
Connect as	Select whether to connect as either SYSDBA or SYSOPER if you have the appropriate permissions. Otherwise, use the default.
Schema	Select a schema if you frequently work in a different schema than the one associated with your user name.
Explain plan table	(Optional) Specify the location of an existing explain plan table to use instead of Toad automatically creating one for you when you execute a statement. This is useful if you do not have necessary permissions to create explain plan tables or want to use an existing table.
Category	Select or create a category if you want to color code Editor tabs for a specific connection. This can help differentiate between development and production databases. You can also set an option to color code the Object Explorer pane and object editor windows (Create, Alter, Drop, etc.). See Set Connection Categories for more information.
Save password	Select this check box if you plan to use this connection in a scheduled Automation script. Note: This option is disabled if Toad was installed with Prohibit saving passwords selected.
Oracle Client Tab	Description
Current home	Modify the Oracle home to use, if needed.
TNSNames Editor	Click this button to edit your local TNSNames file. Tip: You can press CTRL+F to open the Find/Replace window to locate entries in the TNS Names Editor. Pressing F3 locates the next entry that matches your criteria.
SQLNET Editor	Click this button to edit SQLNET.ORA parameters. Before editing this file, you should create a backup copy. See SQLNET.ORA Profile Parameters in the Oracle documentation for more information.
Direct Tab	Description
SID	Enter the ORACLE_SID value for the database. This value is specified in the registry under each installed home.
Advanced Tab	Description
ODBC driver	If an Oracle Client is installed, the default is the Oracle ODBC driver. If an Oracle Client is not installed, the default is the Microsoft Access ODBC driver. Tip: You can specify the ODBC driver to use for all connections for this database provider in Tools \| Options \| Database \| Oracle.

Click Connect to connect immediately while saving the connection information. Optionally, click Save to save the connection without connecting.

Note: Go to Tools | Options | Database | Oracle to specify default options to use in Oracle connections.

Tip: Connections are stored in the connections.xml file and can be found by clicking the Application Data Directory link in Help | About.

Related Topics

Configure Oracle LDAP Support

Create Snowflake Connections

Toad allows you to create a native Snowflake connection, which provides you with a full-featured Object Explorer, Query Builder and SQL Editor.

Note: You must have a Snowflake ODBC driver 2.24.2 (or later) installed before a native connection is created.

To install the Snowflake ODBC Driver

Download and install the ODBC Driver from the Snowflake Web site.

To create a new connection

Click on the Connections toolbar (ALT+F+N).

Select Snowflake from the Group list box.
Enter the connection information in the Create New Connection dialog. Review the following for additional information:

Review the following for additional information:

General Tab	Description
Host	Enter the name of the server hosting the database to which you want to connect.
Authentication	There are four types of authentication that you can use to connect to Snowflake in Toad. The required Login fields will change according to the type of authentication you select. All the authenticators are located in a dropdown list: Snowflake – User account authentication SSO – Single Sign-On via external browser OAuth – Token-based authentication MFA - Multi-Factor Authentication Key pair - JSON Web Token (JWT)
User	Enter the username for your Snowflake account
Password	Enter the password for your Snowflake account
Token	Enter your authentication token (Only visible when connecting via OAuth)
Private key path	Enter your Private key (Only visible when connecting via Key pair)
Passphrase	Passphrase is required only if the keys are encrypted (Only visible when connecting via Key pair)
Port	The default port number for Snowflake is 443
Optional	A connection can be made without providing this information
Role	Enter the user role that you would like to connect to
Warehouse	Enter the name of the Warehouse you would like to connect to
Database	Enter the name of the Database(s) you would like to connect to
Schema	Enter the name of the Schema(s) you would like to connect to

Click Connect to save the connection and immediately connect to the database.

or

Click Save to save the connection without connecting to the database.

Authentication Notes

When using SSO or MFA, there is a way to maintain continuous and secure connectivity without needing to enter login credentials for each connection attempt to Snowflake (as well as to prevent additional browser loading whenever a new module is started in Toad Data Studio). To achieve this, check whether the correct parameters have been set in your account by executing the query below in your Snowflake cloud interface:

SHOW PARAMETERS IN ACCOUNT;

The output that will secure login credentials caching will have these values:

For SSO

allow_id_token = true;

For MFA

allow_client_mfa_caching = true;

If these values are set to false, then the following queries need to be executed:

For SSO:

ALTER ACCOUNT

SET allow_id_token = true;

For MFA:

ALTER ACCOUNT

SET allow_client_mfa_caching = true;

Note: If a Role or Warehouse isn’t chosen, the default settings from the Snowflake User account will be applied (it is considered best practice that a user sets a default Role and a default Warehouse in their Snowflake user account).

Tip: It is strongly advised to use only the Snowflake user account authentication when creating Automation scripts to avoid unnecessary workflow interruptions.

Limitations of Snowflake Native Connections

Connecting to Snowflake through Programmatic SSO (Okta only) is not currently supported.
Semi-structured data types can be used for storing and analyzing purposes in Snowflake connections, but are not supported in the Data Compare/Sync Wizard because Toad will not be able to generate valid sync scripts unless they are modified before execution
At the moment, there is no support for Code Snippets in Snowflake connections

Tip: Connections are stored in the connections.xml file and can be found by clicking the Application Data Directory link in Help | About.

Related Topics

Manage Connections