SQLI VARA Objects

SQLI or SQL Internal variable objects retrieve values from the Automation Engine database using SQL statements. You do not have to specify a Connection or a Login object because the database access remains internal. There is no limit to the length of the values. If you set one, this value applies to the first value column only. Items exceeding this limit are excluded. To determine the maximum number of returned lines, use the SQLVAR_MAX_ROWS setting in the UC_SYSTEM_SETTINGS variable.

Prerequisites

  • SQLVAR_INTERNAL is set to YES, see SQLVAR_INTERNAL
  • Your use definition has the right to Create and modify SQL-internal variables

Notes:

  • This type of VARA object does not support binary fields. Binary data that result from an SQL query causes an error in the preview or when the values are retrieved at runtime.

  • For technical reasons, the system does not check the SQL statements that are processed with database VARA objects (SEC_SQLI, SEC_SQL, SQLI, and SQL types). This means that you can change or delete data records by using VARA objects. For security reasons, consider restricting user access accordingly. If possible, deploy a database user with read-only rights for VARA objects that can access an external database (SQL, SQL SECURE). For internal SQL variables (SQLI, SQLI SECURE), you can limit object access via a privilege (create and modify SQL-internal variables).

  • Depending on the data type, this VARA object returns "" (string, date, time, timestamp) or 0 (number) for NULL values.

    Important! A conversion error that occurs while running SQL commands on MS SQL server databases can cause a deadlock or an inconsistent transaction with an unforeseen result. It is recommendable to verify the commands in SQLI variables very carefully because the Automation Engine cannot intercept such an error.

  • Use PromptSet variables here when you use the Dynamic Reload feature for combo box prompts. The PromptSet variables are resolved when the object that includes the PromptSet is executed.

  • You can include PromptSet variables here when using the dynamic reload feature for combo box prompts. When you use PromptSet variables in a dynamic VARA object, the Preview feature returns an error. This is because the PromptSet variables do not exist in the dynamic VARA object. However, the PromptSet variables will be resolved when objects including the PromptSet are executed.

To Define an SQLI VARA Object

  1. In the Variable Settings section, specify how the VARA object is going to access the target system from which it retrieves the values:

    • Enter the Oracle Statement / SQL Server Statement / DB2 Statement / PostgreSQL Statements that you want to use to select specific database entries that serve as variable values. You have two options:

      • Type your statement in the input field
      • Click the icon to open the cell editor and enter your SQL statement

      Example:select * from OH

      Maximum length: 4096 characters

      Notes:

      • SQL statements are not checked. You can change or delete database entries
      • The Automation Engine does not verify whether these SQL commands include errors or are dangerous. They are passed on to the database without being verified. This means that an execution error will only occur during database access, which is when the variables are being resolved.
      • Using Inserting Variables/VARA Objects in Objects and Scripts or other VARA objects requires you to specify the setting VAR_SECURITY_LEVEL in the UC_SYSTEM_SETTINGS - Systemwide Settings variable accordingly. Otherwise, the variables are not replaced (standard) and a database error occurs.
      • You can include PromptSet variables here when using the dynamic reload feature for combo box prompts. When you use PromptSet variables in a dynamic VARA object, the Preview feature returns an error. This is because the PromptSet variables do not exist in the dynamic VARA object. However, the PromptSet variables will be resolved when objects including the PromptSet are executed.

  2. In the Data & Formatting section you specify the data format of the value that is rendered by the VARA object. Do the following:

    • Data Type

      • For Text

        • Select Limit Text Length to set a limit to the length of the character string.

        • In Max. text length specify the maximum length. Possible values: 1 to 1024.

        • Select Force upper case if you want to convert the text of the first value column to upper case.

        • In Result format specify the format of the content in the RESULT column, which is the first column that is displayed in the preview. The result column can show a combination of value columns and any other characters.

          Column numbers that are specified in curly brackets { } in the Result Format field are replaced by the value of the relevant column.

          Example:

          • Value column 1: JOB1
          • Value column 2: WIN01
          • Result format: {1}_{2}
          • Result column: JOB01_WIN01

          If you do not specify a result format, the value in the Result or in the Key column is used.

          Important!

            The result must be within the defined limits and it must match the data type. Otherwise, the result column does not show a value.

            The limitations (min. value, max. value, limit text to) do not affect the result column but the first returned column. If the values of this column exceed the maximum range, this line is skipped. The line is not available through the VARA object.

      • For Number

        Singed integer, possible values: any number from 0 to 2147483647.

        Default format: 16 digits

      • For Time

        The following formats are possible:

        • HHMMSS
        • HH:MM:SS
        • HHMM
        • HH:MM
        • MMSS
        • MM:SS

        Default format: HHMMSS

        The value for this data type must be a four or a six digit number. Decimal places are removed. Four-digit numbers are converted to hours and minutes.

        Example:

        Output Format: HH:MM:SS

        Value of the user or the data source: 1234, 1234.5, 123400, 12:34, 12:34:00

        Resulting variable value: 12:34:00

      • For Date

        The following formats are possible:

        • DD-MON-YYYY
        • DD-MON-RR
        • MM-DD-YYYY
        • YYYYMMDD
        • MMDDRR
        • DDMMRR
        • MM-DD-RR
        • MM/DD/RR
        • YYMMDD
        • YY.MM.DD
        • YY-MM-DD
        • YYYYMMDD
        • YYYY.MM.DD
        • YYYY-MM-DD
        • DDMMYY
        • DD.MM.YY
        • DD-MM-YY
        • DDMMYYYY
        • DD.MM.YYYY
        • DD-MM-YYYY
        • MMDDYY
        • MMDDYYYY
        • MM/DD/YY
        • MM/DD/YYYY

        Default format: YYMMDD

        Note: Some date formats include RR as a placeholder for the abbreviated year. Having both YY and RR accommodates different century-counting conventions, which are based on the two digits of the abbreviated year value.

        • YY - The current century applies for numbers from 00 to 80. The previous century applies for 81 - 99. 
        • RR - The current century applies for numbers from 00 to 49. The previous century applies for 50 - 99.

        Examples:

        • Date format DDMMYY and the resulting complete dates:

          010305 - corresponds to 01 March 2005
          010365 - corresponds to 01 March 2065
          010380 - corresponds to 01 March 2080
          010385 - corresponds to 01 March 1985

        • Date format DDMMRR and the resulting complete dates:

          010305 - corresponds to 01 March 2005
          010365 - corresponds to 01 March 1965
          010380 - corresponds to 01 March 1980
          010385 - corresponds to 01 March 1985

      • For Timestamp

        Possible formats:

          YYYYMMDDHH24MISS

          YYYY-MM-DD HH:MM:SS

        Default format: YYYY-MM-DD HH:MM:SS

        The value for this data type must be a four or a six digit number. Decimal places are removed. Four-digit numbers are converted to hours and minutes.

        Example:

        Output Format: YYYY-MM-DD HH:MM:SS
        Value of the user or the data source: 20110325 2201, 20110325 2201.5, 20110325 220100
        Resulting variable value: 2011-03-25 22:01:00

    • Set Min. value / Min. value and Set max. value / Max. value (All VARA types)

      Enforces a minimum/maximum value.

      Possible values for Number: max. 16 digits before and 16 digits after the decimal point

  3. All VARA objects have a Script Access section on their definition pages that determines the error handling when scripts read the VARA object. In this section you decide what happens if scripts access the VARA object and the key to which they refer is not available.

    You have the following options:

    • Return error

      The script ends abnormally and a runtime error message is displayed in the Messages console

    • Return initial values (Default)

      The script continues executing although the key is not available. No runtime error is displayed. The report contains an empty string indicating that no key has been found.

      Tip: Ensure that the keys of VARA objects always return a value if you want to use this option.

  4. To run and check the command that you have entered in the statement section, click Preview. The statements are executed and their results displayed. The preview function serves to check for potential errors in the database statements (for example, it the data type of the VARA object and of the database do not match).

    Example:

    select oh_name from oh

    where oh_otype = 'JOBI'

    and oh_deleteflag = 0

    and oh_client = &$CLIENT#

    order by oh_name asc

  5. To export the content of the preview table to a CSV file, click Export Table. All rows and column are exported. Use this function if you need to further process the content of the CSV file (paste it to a different application for further processing and so on).

  6. To copy one or more rows in the Preview table, select the Copy button. The selected rows are copied to the clipboard and you can paste them to a third party tool (Google, Sheets, Excel, text editor, and so on).

    Note: This function is available only if https is used on the Automic Web Interface .

  7. Save your changes.

See also: