SQL Query

Enter the Connection string and choose database provider name from dropdown list (the database administrator should give you both).


SQL Query executes the SQL statement (Select) or stored procedure. Type in the SQL statement or choose the stored procedure. Optionally (in Properties window), in the Stored Procedure Return Value textbox one can put the variable that will store the value retrieved from the procedure. Now you should choose the Wizlink activity to execute for each row value (record) retrieved from database.

The variable record is DataReader object. You can access each column of the returned row by series of methods:

    • using number of the column - record(0) retrieves the value from first column, as object;
    • using name - record("Name") retrieves the value from the column that is called Name, as object;
    • using special method of DataReader object - record.GetString(0) retrieves the value of the first column, as string (methods available: GetBoolean, GetString, GetChar, GetDateTime, GetDecimal, GetDouble, GetFloat, GetInt16, GetInt32, GetInt64).

More information about connection:

Provider name: choose one of the list: MS SQL Server, PostgreSQL, MySQL, Oracle or ODBC.

Connection string: string of the characters that allows you to connect to database; in general: "Data Source=xxxx;Database=db;User Id=user1;Password=pass" (however it may vary depending on database).
More usefull information on:

Connection string formats:
MS SQL Server
Data Source=my_server_address; Database=my_database_name; User Id=my_user_name; Password=my_pass
More information:

MySQL / MariaDB
Server=my_server_address; Port=my_port; Database=my_database_name; User=my_user_name; Password=my_pass

Server=my_server_address; Port=my_port; Database=my_database_name; User Id=my_user_name; Password=my_pass
More information:

Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=my_host)(PORT=my_port))) (CONNECT_DATA=(SERVER=DEDICATED)(SID=my_sid))); User Id=my_user_name; Password=my_pass;
More information:

connection string depends on type of ODBC driver for database

Parameter NameParameter TypeIn/OutDescription
Command TextStringInputSQL statement or stored procedure (string expression)
Command TypeDropdownInputselect type of command from the dropdown list
Connection StringStringInputphrase that allows to connect to database
Database ProviderStringInputone of a list: MS SQL Server, PostgreSQL, MySQL, Oracle, ODBC
Display NameLiteralInputchanges display name of the activity
Exclude from Transaction CheckBooleanInputcheckbox; default is "off"
ParametersCollectionInputparameters to database query
ResultBooleanOutputreturns a Boolean value. True if no error in activity, otherwise will return False
Result CodeInt32OutputResult Code will return 0 if there is no error in activity, otherwise in most cases it will return 1, the extended result code will show only in several chosen activities
Stored Procedure Return ValueInt32Outputvariable to store procedure value (optional parameter)