Example:
\open
Basically, there are five commands a user should know:
\provider, \connectionstring, \open, \quit, and \help
To connect to a database, you need to do the following:
1. set your data provider via \provider
Example: SQL# \provider mysql
2. set your connection string via \connectionstring
Example: SQL# \connectionstring Database=test
3. open a connection to the database via \open
Example: SQL# \open
Example: SQL# \ConnectionString Database=testdb or SQL# \cs Database=testdb For more examples, see section CONNECTION STRING EXAMPLES.
Example: to set the provider for MySQL: SQL# \provider mysql or SQL# \p mysql Note: if you need to load an external provider in SQL#, see the SQL# command \loadextprovider
Example: SQL# \ListProviders or SQL# \listp
Example: SQL# \bcs ConnectionString Option: Data Source [] SQL# blazer ConnectionString Option: Persist Security Info [False] SQL# ConnectionString Option: Integrated Security [False] SQL# ConnectionString Option: User ID [] SQL# scott Password: ***** ConnectionString Option: Enlist [False] SQL# ConnectionString Option: Pooling [True] SQL# ConnectionString Option: Min Pool Size [0] SQL# ConnectionString Option: Max Pool Size [100] SQL# ConnectionString Option: Unicode [False] SQL# ConnectionString Option: Load Balance Timeout [0] SQL# ConnectionString Option: Omit Oracle Connection Name [False] SQL# ConnectionString is set.
Example: to load the MySQL provider Mono.Data.MySql SQL# \loadextprovider Mono.Data.MySql Mono.Data.MySql.MySqlConnection
Example: SQL# \open
Example: SQL# \close
Example: SQL# \defaults
Example: SQL# \q
e execute SQL query (SELECT)
Example: to execute a query SQL# SELECT * FROM EMPLOYEE SQL# \e Note: to get \e to automatically work after entering a query, put a semicolon ; at the end of the query. Example: to enter and exectue query at the same time SQL# SELECT * FROM EMPLOYEE;
Example: to insert a row into a table: SQL# INSERT INTO SOMETABLE (COL1, COL2) VALUES('ABC','DEF') SQL# \exenonquery Note: this can be used for those providers that are new and do not have the ability to execute queries yet.
Example: to execute a Maxium aggregate SQL# SELECT MAX(grade) FROM class SQL# \exescalar
Example: SQL# SELECT fname, lname, hire_date FROM employee SQL# \exexml employee.xml Note: this depends on DataAdapter, DataTable, and DataSet to be working properly
Example: SQL# \f batch.sql# Note: the SQL# commands are interpreted as they are read. If there is any SQL statements, the are executed.
Example: SQL# \o result.txt
Example: SQL# \load commands.sql
Example: SQL# \save commands.sql
Example: SQL# \h
Example 1: SQL# \s true Example 2: SQL# \s false
Example: SQL# \r
Example: SQL# \printSH VARIABLES WHICH CAN BE USED AS PARAMETERS Commands to set variables which can be used as Parameters in an SQL statement. If the SQL contains any parameters, the parameter does not have a variable set, the user will be prompted for the value for each missing parameter.
Example: SQL# \set sFirstName John
Example: SQL# \unset sFirstName
Example: SQL# \variable sFirstName
If this option is true, the SQL contains parameters, and for each parameter which does not have a SQL# variable set, the user will be prompted to enter the value For that parameter.
Example: SQL# \useparameter true
Default: false
Example: SQL# \usesimplereader true
Default: false. Mostly, this is dependent on the provider. If the provider does not have enough of IDataReader implemented to have the normal reader working, then the simple reader can be used. Providers like SqlClient, MySQL, and PostgreSQL have this ption defaulting to true.
PROVIDER NAME NAMESPACE ASSEMBLY oracle Oracle 8i-11g System.Data.OracleClient System.Data.OracleClient postgresql NetPostgreSQL Npgsql Npgsql bytefx ByteFX MySQL ByteFX.Data.MySqlClient ByteFX.Data sqlclient MS SQL 7-2008 System.Data.SqlClient System.Data odbc ODBC System.Data.Odbc System.Data sqlite SQL Lite Mono.Data.SqliteClient Mono.Data.SqliteClient sybase Sybase Mono.Data.SybaseClient Mono.Data.SybaseClient firebird Firebird SQL FirebirdSql.Data.FirebirdSql FirebirdSql.Data.Firebird mysql MySQL AB MySql.Data.MySqlClient MySql.Data NOTES: Ngsql is the .Net Data Provider for PosgreSQL. The latest verison can be downloaded from http://npgsql.projects.postgresql.org/ MySql.Data is the MySQL Connector/Net for connecting to MySql databases. For MySQL, it is strongly recommend to use MySql.Data instead of the old ByteFX.Data provider. Unfortunately, MySql.Data is not included with Mono. You can download the latest MySQL Connector/Net from MySQL AB at http://dev.mysql.com/downloads/ FirebirdSql.Data.Firebird can be downloaded from here: http://www.firebirdsql.org/index.php?op=files&id=netprovider
Example of usage: \connectionstring Database=testdb Connection String examples: Microsoft SQL Server via System.Data.SqlClient Server=DANPC;Database=pubs;User ID=saPassword=; For Integrated Security, bear in mind that Mono is not integrated with Windows, SQL Server client nor server, nor Windows Server. Therefore, you must provide the Windows Domain name and domain user name and password for this user. Server=DANPC;Database=pubs;User ID=DOMAINser;Password=pass;Integrated Security=SSPI For a server locally, you can use localhost. ODBC via System.Data.Odbc provider using a DSN named "MSSQLDSN" I set up in the Windows control panel's ODBC Data Sources which connects to Microsoft SQL Server 2000: DSN=MSSQLDSN;UID=danmorg;PWD=freetds To use ODBC ON Unix, consider unixODBC from http://www.unixodbc.org/ or use iODBC from http://www.iodbc.org/ SQL Lite via Mono.Data.SqliteClient provider which connects to the database file SqliteTest.db; if not found, the file is created: URI=file:SqliteTest.db Oracle via System.Data.OracleClient Data Source=testdb;User ID=scott;Password=tiger If you prefer to not use a tnsnames.ora file, you can use a connection string which allows a TNS network description that is parentheses delimited like the following which has the host, port, and service name. For host, you can specify an IP address instead of a hostname. User ID=SCOTT; Password=TIGER; Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.101)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=TESTDB))) Npgsql (.NET PostgreSQL) from http://gborg.postgresql.org/project/npgsql/projdisplay.php Server=localhost;Database=test;User ID=postgres;Password=fun2db ByteFX (ByteFX MySQL) from Please use MySql.Data instead. Server=localhost;Database=test;User ID=mysql;Password= FirebirdSql via FirebirdSql.Data.Firebird (download latest form FirebirdSql.org) Database=C:\FIREBIRD\EXAMPLES\EMPLOYEE.FDB;User=SYSDBA;Password=masterkey;Dialect=3;Server=localhost MySQL via (MySql.Data) MySQL Connector/Net from http://www.mysql.com/ Server=localhost;Database=test;User ID=mysql;Password=mypass;Pooling=false
by Daniel Morgan <monodanmorg@yahoo.com>
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