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Willcallyou Coffee Mug, Squirrel Whisperer, 11 oz. 4.8 out of 5 stars 366. Get it as soon as Wed, Sep 2. FREE Shipping on your first order shipped. Before we start talking about the usage of SQuirreL, let’s hit the DB2 command line processor to create a database that we can use to see what SQuirreL can do for us: db2 = create db squirrel. Next, connect to the database. I’ll assume that your username and password are db2admin and db2admin respectively.
Contents |
Introduction |
Installation |
Command Line Options |
How to Connect to a Database |
The Driver |
The Alias |
Connecting |
Executing SQL |
Data Types |
Global Preferences |
New Session and Session Properties |
Plugins |
Logs |
Menus |
File Menu |
Drivers Menu |
Aliases Menu |
Plugins Menu |
Session Menu |
Windows Menu |
Help Menu |
Introduction
SQuirreL SQL Client is a graphical Java program that will allow you to view the structure of a JDBC compliant database, browse the data in tables, issue SQL commands etc. You need to be running at least version 1.3 of Java. Some people have had problems with Java 1.3.0 so it is recommended that you use at least Java 1.3.1. Java 1.4 is preferred. See the Old Versions page for SQuirreL downloads that will work with older versions of Java.
It is free software, and you are welcome to redistribute it under the terms of the GNU Lesser General Public License.
Installation
The installer has been created using the IzPack Java Installer. Download the file squirrel-sql-<version>-install.jar and execute it with the command:
On some operating systems (currently Windows NT, 2000 and XP) a shortcut will be created in the menu system. For Windows the file squirrel-sql.bat will run the application. For Unix the file is squirrel-sql.sh. The squirrel-sql.jar file is executable so on those operating systems that support it you can run SQuirrel by double clicking squirrel-sql.jar. You can also run it by issuing the following command:
Just remember that when executing the jar file directly you don't use your current class path ($CLASSPATH on Unix or %CLASSPATH% on Windows) so if you have your JDBC drivers in your class path then SQuirreL won't see them. See The Driver for more information.
Some people have reported core dumps with the Sun JDK1.3.1 running under Linux. If this happens passing the -classic flag to the java executable appears to fix the problem. No similar problems have been reported with any other JDK on Linux.
Command Line Options
The command line option -nosplash can be passed to the main class in order to start SQuirreL without the splash screen appearing. E.G.
The command line option -noplugins can be passed to the main class in order to start SQuirreL without loading any of the plugins.
The user settings directory can be overridden by the -settingsdir Skyrim peace council best choices. option. E.G.
The configuration file for log4j is specified by the loggingConfigFile option. E.G.
The application directory is specified by the squirrelHome option. This tells SQuirreL where to look for plugins etc. This should be the directory that you installed SQuirreL into. E.G.
To return to the standard theme for the metal Look and Feel pass the -usedefaultmetaltheme option. E.G.
How to Connect to a Database
There are two pieces of information you need to supply to connect to a database; the driver and the alias. The driver specifies the JDBC driver to use and the alias specifies the connection parameters.The Driver
A number of default driver definitions ship with SQuirreL. These are added to the Drivers List window (View Drivers option on the Windows menu) when you first start up SQuirreL.
The icon next to a driver indicates that it has been successfully loaded while the icon indicates that the JDBC driver could not be loaded and so cannot be used to connect to a database. Red bull bc one apk data download.
All of the default driver definitions assume that the JDBC driver classes are in the current class path or in your JRE extensions directory (consult the documentation for your Java implementation for more information on this). If this is not the case you will need to modify the driver definition to point to the jar file or the classes directory that contains these classes.
You can create new driver definitions using the New Driver option on the Drivers menu.
This is an example of a driver definition. This dialog can be displayed by selecting a driver definition in the Drivers List window and then selecting the Modify Driver option from the Drivers menu.
The Name text field specifies an easy to remember name for the database driver definition and is the text shown in the Drivers List window.
The Example URL shows an example URL for this driver. This can be found in the documentation that comes with the driver.
The entries in the Java Class path tab show the directories and jars in the current class path. If you click on a jar file and press the List Drivers button then the class names of all the JDBC drivers in that jar will be placed in the Class Name dropdown control.
The Class Name specifies the class name of the JDBC driver. Either select an existing entry in the dropdown or key in the class name of the JDBC driver (it can normally be found in the documentation that comes with the driver).
The Extra Class Path tab allows you to select a JDBC driver that is in a jar file or a directory that is not in the current class path.
The Add button will display a File Open dialog allowing you to select one or more jar files or directories. The Delete button allows you to remove a jar file or directory from the list. The Up and Down buttons allow you to change the sequence of the entries. The List Drivers button will place the class names of all the JDBC drivers in the currently selected jar file into the Class Name dropdown.
Press the OK button to save the driver definition and close the window or the Close button to close the window without saving any changes.
The Alias
Now you need to create an alias to your database. Ib mac.
Display the Aliases List window (View Aliases option on the Windows menu). When you run SQuirreL for the first time this window will be empty.
Take the New Alias option from the Aliases menu and the following dialog will be displayed.
Enter an easy to remember name in the Name field for this database URL. This is the text that will be displayed in the Aliases List Window.
Select the driver for this alias from the Driver dropdown or click on the New button to create a new driver definition.
Change the URL to point to your database.
Optionally enter a user name if you want the alias to default to a specific user.
The Test button will allow you to attempt to connect to your alias to ensure that the parameters you have entered are correct.
Press the OK button to save the alias definition and close the window or the Close button to close the window without saving any changes.
Connecting
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The new alias should now appear in the Connect To dropdown. Select it in the dropdown and enter your user name and password in the connection dialog, press OK and you should be connected.
Session Window
When you first connect to a database a Session window will be shown.
The Object Tree on the left shows the structure of the database. Clicking on various nodes within this object tree will show further information in the right hand detail panel. In this example the database metadata is shown. Clicking on the title of a column will sort the display by the data in that column. This is true of all tabular displays in SQuirreL.
This shows the data displayed when a table is selected in the Object Tree.
Executing SQL
SQL can be executed from the SQL tab in the window that opens once you have connected to an alias. Multiple statements can be executed and the results will be displayed in multiple tabs below the SQL entry area.
When the SQL tab is selected pressing <ctrl><enter>, taking the Execute SQL option from the Session menu or pressing the Execute SQL button in the session window tool bar will execute the entered SQL.
If a single statement is entered then pressing <ctrl><enter> will execute just that statement.
If you only want to execute part of the SQL entered then highlight the SQL that you want to execute and press <ctrl><enter>.
To only execute a single statement amongst several statements (separated from the other statements by at least one blank line) within the SQL entry area then click on the line containing the statement that you want to execute and press <ctrl><enter>.
The characters -- at the beginning of a line will turn it into a comment.
As can be seen in the above screen shot, double clicking in a cell in the query results will open up a new window showing the entire contents of the cell.
The icon on the tabbed folder containing the SQL results allow you to 'tear off' the query results from the tabbed folder and display it in its own window.
Data Types
This is a quick description of how SQuirreL handles various data types when displaying the results of SQL statements. SQuirreL uses the column type (ResultSetMetaData.getColumnType(.)) from the metadata for the result set to determine how to display the column.
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- java.sql.Types.NULL
- <Null> is displayed.
- java.sql.Types.BOOLEAN and java.sql.Types.BIT
- If the retrieved column data is a java.lang.Boolean object then the appropriate true/false is displayed. If the retrieved column is a java.lang.Number then a non-zero value will display true while a zero value will display false. Otherwise the column data is converted to a string and if this string equals (ignoring case) 'true' then true is displayed else false.
- java.sql.Types.TIME
- A java.sql.Time object is retrieved from the result set and displayed in hh:mm:ss format.
- java.sql.Types.DATE
- A java.sql.Date object is retrieved from the result set and displayed in yyyy-mm-dd format.
- java.sql.Types.TIMESTAMP
- A java.sql.TimeStamp object is retrieved from the result set and displayed in yyyy-mm-dd hh:mm:ss.fffffffff format.
- java.sql.Types.BIGINT
- If the retrieved column type is a java.lang.Long or a java.lang.Number then it is stored as a java.lang.Long and displayed as a base ten signed long. Otherwise the column data is converted to a string which is then parsed as a base ten signed long.
- java.sql.Types.DOUBLE, java.sql.Types.FLOAT, java.sql.Types.REAL
- If the retrieved column type is a java.lang.Double or a java.lang.Number then it is stored as a java.lang.Double and displayed as a string representation of the double. Otherwise the column data is converted to a string which is then parsed as a double.
- java.sql.Types.DECIMAL, java.sql.Types.NUMERIC
- If the retrieved column type is a java.math.BigDecimal or a java.lang.Number then it is stored as a java.math.BigDecimal and displayed as a string representation of the BigDecimal. Otherwise the column data is converted to a string which is then parsed as a BigDecimal.
- java.sql.Types.INTEGER, java.sql.Types.SMALLINT, java.sql.Types.TINYINT
- If the retrieved column type is a java.lang.Integer or a java.lang.Number then it is stored as a java.lang.Integer and displayed as a string representation of the Integer. Otherwise the column data is converted to a string which is then parsed as a Integer.
- java.sql.Types.CHAR, java.sql.Types.VARCHAR, java.sql.Types.LONGVARCHAR
- The column data is displayed as a string.
- java.sql.Types.BINARY, java.sql.Types.VARBINARY, java.sql.Types.LONGVARBINARY
- If the appropriate session property says to retrieve data of this type then the column data is displayed as a string otherwise one of <Binary>, <Varbinary> or <Longvarbinary> is displayed.
- java.sql.Types.BLOB
- If the session property says to retrieve blobs then the column data is displayed as bytes. Note that the session property can specify the number of bytes of the blob to read in.
- java.sql.Types.CLOB
- If the session property says to retrieve clobs then the column data is displayed as a string. Note that the session property can specify the number of characters of the clob to read in.
- java.sql.Types.OTHER
- If the session property says to retrieve columns of this type then the column data is displayed as a string.
- Any other type
- If the session property says to retrieve all other data types then the column data is displayed as a string.
Global Preferences
Global Preferences specify configuration settings for the application.
General Tab
General Tab (Appearance)
Show Window Contents While Dragging - If checked this shows the contents of windows as they are being dragged. If unchecked only the outline of the window will be shown. Uncheck for a speed improvement on slow machines.
Show Tooltips - If checked then tooltips (or hints) will be shown when the mouse 'hovers' over some controls.
Use Scrollable Tabbed Panes - When running version 1.4 or above of Java selecting this checkbox will display the tabs in tabbed folders in a scrollable region rather than wrapping them when all tabs will not fit within a single run.
Show Main Window Tool Bar - If checked then the tool bar will be displayed in the main window.
Show Main Window Status Bar - If checked then the status bar will be displayed in the main window.
Show Drivers Tool Bar - If checked then the tool bar will be displayed in the Aliases Window.
Show Aliases Tool Bar - If checked then the tool bar will be displayed in the Aliases Window.
General Tab (Logging)
Execution Log File - This (display only) setting tells you the name (and location) of the logging file for SQuirreL. If the file name is too long for the label then the full name will be displayed in a tooltip.
For more information see Logs.Configuration File - This (display only) setting tells you the name (and location) of the logging configuration file for SQuirreL. If the file name is too long for the label then the full name will be displayed in a tooltip.
For more information see Logs.SQL Tab
Login Timeout - Sets the maximum time in seconds that a JDBC driver will wait while attempting to connect to the database.
JDBC Debug - If checked tells the JDBC drivers to write debugging information to the JDBC Debug File. Depending on the JDBC driver you are using this may generate a lot of output and significantly slow down SQuirreL.
JDBC Debug File - If JDBC Debug is checked then this (display only) setting is the file that the debug information will be written out to. If the file name is too long for the label then the full name will be displayed in a tooltip.
Proxy Tab
Proxy Tab (HTTP Proxy)
Use Proxy - If checked then a HTTP proxy server will be used for connecting to servers.
Server - The name (or IP address) of your proxy server.
Port - The port number to use on the proxy server.
User - The user name to use to log onto the proxy server.
Password - The password to use to log onto the proxy server.
No Proxy For - A list of servers (separated by |) that do not need to be accessed through your proxy server.
Proxy Tab (SOCKS Proxy)
Use Proxy - If checked then a SOCKS proxy server will be used for connecting to servers.
Server - The name (or IP address) of your proxy server.
Port - The port number to use on the proxy server.
New Session and Session Properties
The 'New Session Properties' dialog allows you to specify settings for future session. To change the settings for existing sessions use the 'Session Properties' menu option.
General Tab
General Tab (General)
Show Tool Bar - If checked then display a toolbar on the session window.
General Tab (Output)
Meta Data - Specify the output type for meta data displays.
SQL Results - Specify the output type for SQL result displays.
General Tab (SQL Entry Area)
Font - The Font button allows you to specify the font to be used in the SQL entry area.
SQL Tab
SQL Tab (SQL)
Auto Commit - If checked then all SQL will be automatically committed after it is executed. If unchecked then you will be able to use the 'Commit' and 'Rollback' options on the 'Session' menu.
Commit on Closing Session - If 'Auto Commit' is not checked then this option controls whether or not a 'Commit' is issued prior to closing a session. If this option is not checked then you will lose all uncommitted work when the session is closed. Only applicable if 'Auto Commit' is not checked.
Show Row Count for Tables - Show the number of rows for each table in the object tree. This will slow down the building of the object tree.
Contents - Limit Rows/Number of Rows - If Contents - Limit rows is checked then only the number of rows specified in the Number of rows will be displayed in the Contents tab for a table.
SQL - Limit Rows/Number of Rows - If SQL - Limit rows is checked then only the number of rows specified in the Number of rows will be displayed for an SQL query.
Statement Separator - The character used to separate SQL statements in the SQL entry area.
Start of Line Comment - The character that specifies that the line in the SQL entry area is a comment and should not be passed to the database for execution.
SQL Tab (Show These Data Types)
Binary - If checked then binary columns will be displayed.
VarBinary - If checked then varbinary columns will be displayed.
LongVarBinary - If checked then longvarbinary columns will be displayed.
SQL Other - If checked then java.SQuirreLl.Types.Other columns will be displayed.
Blob - If checked then blob columns will be displayed. You can specify the number of bytes to read or all.
Clob - If checked then clob columns will be displayed. You can specify the number of characters to read or all.
All Other Data Types - If checked then all other columns will be displayed.
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Plugins
A plugin is an application written in Java that runs within SQuirreL. This allows developers to enhance the functionality of SQuirreL without having to rebuild the SQuirreL application itself. It also allows you to 'pick and choose' the functionality that you want in SQuirreL. For instance if you don't use Oracle then you don't need the Oracle specific functionality supplied by the Oracle plugin.
Plugins can be downloaded from the SQuirreL web site http://squirrel-sql.sf.net
To install a plugin unpack the zip or gz file into the plugins directory within the SQuirreL application directory keeping the directory structure. To use the plugin you will need to restart SQuirreL.
The 'Summary' option on the 'Plugins' menu will display a dialog box showing the plugins currently installed.
Logs
Menus
File Menu
- Global Preferences
- Displays the Global Preferences dialog.
- New Session Properties
- Displays the New Session Properties dialog.
- Dump Application
- This option will dump some internal structures of the application to a text file along with a dump of all the currently open sessions. This may be useful for debugging problems with SQuirreL.
- Exit
- Exit the application after closing all sessions.
Drivers Menu
- New Driver
- Displays a dialog allowing you to specify a new JDBC driver.
- Modify Driver
- Displays a dialog allowing you to modify an existing JDBC driver.
- Delete Driver
- Allows you to delete an existing JDBC driver.
- Copy Driver
- Copies the JDBC driver currently selected in the Drivers list and displays it as a new driver in the driver maintenance dialog
- Install Default Drivers
- Copies entries from the default JDBC drivers that ships with SQuirreL to the Drivers List. If the driver is already in the list then the default one will not be copied.
Aliases Menu
- Connect
- Display a connection dialog allowing you to connect to the specified alias.
- New Alias
- Displays a dialog allowing you to specify a new alias.
- Modify Alias
- Displays a dialog allowing you to modify an existing alias.
- Delete Alias
- Allows you to delete an existing alias.
- Copy Alias
- Copies the alias currently selected in the ALiases list and displays it as a new alias in the alias maintenance dialog
Plugins Menu
- Summary
- Displays a dialog showing the installed plugins.
Session Menu
- Session Properties
- This option will display the Session Properties dialog allowing you configure your current session. More.
- Dump Session
- This option will dump some internal structures of the current session to a text file. This may be useful for debugging problems with SQuirreL.
- Refresh Tree
- This option will refresh the object tree.
- Run SQL
- This option will run the current SQL in the SQL entry area. More.
- Commit
- This option will commit the current SQL transaction. This is only applicable if 'Auto Commit' has been turned off in the Session Properties.
- Rollback
- This option will rollback the current SQL transaction. This is only applicable if 'Auto Commit' has been turned off in the Session Properties.
- Show Native SQL
- This option will append the native SQL for the current JDBC SQL into the SQL entry area. E.G. If you enter the following in an Oracle session and take this option then the following will be appended to the SQL entry area.
- Reconnect
- Close the current connection to the database and reopen it using the same user name and password.
- Close Session
- Close the current connection to the database and close the session window.
- Close All SQL Result Tabs
- Close all SQL results displayed in the tabbed folder for the current session.
- Close All SQL Result Windows
- Close all SQL results windows 'torn off' from the tabbed folder for the current session.
Windows Menu
- View Aliases
- Display the list of aliases that define a connection to a database.
- View Drivers
- Display the list of drivers.
- View SQuirreL Logs
- Display the execution logs for SQuirreL.
- Tile
- Tile the open session windows.
- Cascade
- Cascade the open session windows.
- Maximize
- Maximize the open session windows.
- Close All Sessions
- Close all existing sessions.
Help Menu
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- Help
- Displays this Help File.
- FAQ
- Displays the Frequently Asked Questions file.
- Change Log
- Displays the development history of SQuirreL.
- Licence
- Displays the licence for SQuirreL.
- About
- Displays the About Box for SQuirrel.