Skip to content

WHERE Clause

A WHERE clause can be used to filter table records, see SAP ABAP Documentation: SELECT-WHERE. Enter WHERE clauses manually in Text mode or use the WHERE Clause Editor in Editor Mode.

Create a WHERE Clause

  1. Open a Xtract Table CDC component.
  2. Navigate to the tab WHERE Clause.
    Extraction-Settings-01
  3. Enter a WHERE clause using the WHERE Clause Editor.
  4. Click [Load live preview] to display the results in the Preview section.

WHERE Clause Syntax

The WHERE Clause syntax generally uses the following structure:

[Table~Column][Operator][Filter-Value]

Filter values in the WHERE clause must use the internal SAP representation:

Examples Correct Wrong
Date: YYYYMMDD ✅ 19990101 ❌ 01.01.1999
Year Period: YYYYPPP ✅ 1999001 ❌ 001.1999
Numbers with leading zeroes, e.g., customer numbers ✅ 0000001000 ❌ 1000

The following operations are supported in the WHERE clause:

Operator Description
=, EQ True if the content of operand1 is equal to the content of operand2.
<>, NE True if the content of operand1 is not equal to the content of operand2.
<, LT True if the content of operand1 is less than the content of operand2.
>, GT True if the content of operand1 is greater than the content of operand2.
<=, LE True if the content of operand1 is less than or equal to the content of operand2.
>=, GE True if the content of operand1 is greater than or equal to the content of operand2.
(NOT) LIKE True if the value of operand1 matches (does not match) the pattern in operand2.
(NOT) IN True if the content of operand1 is (not) part of the content of operand2. Operand2 must be of type LIST or SQL.

For more details on the OpenSQL syntax, see SAP Help: Select WHERE

Tip

To increase extracting performance, make sure to place the indexed fields as the first selection filter operation in the WHERE clause.

WHERE Clause Editor

There are 2 options for adding criteria to the WHERE clause:

  • [Add Criteria] adds single criteria.

    • The default structure for a single criteria with static values is [Table~Column][Operator][Filer-Value] e.g., MARC~WERKS = 1000.

  • [Add Criteria Group] adds a group of criteria.

    • The default structure for a criteria group is ([Table~Column1][Operator1][Filter-Value1][Boolean][Table~Column2][Operator2][Filter-Value2]) e.g., (MARC~PSTAT = 'L' OR MARC~PSTAT = 'LB').

Tip

Combine multiple criteria and criteria groups to create complex filters e.g., MARC~WERKS = 1000 AND (MARC~PSTAT = 'L' OR MARC~PSTAT = 'LB') extracts only data where the column WERKS equals 1000 and the column PSTAT equals either 'L' or 'LB'.

Components of the WHERE Clause Editor

WHERE-Clause-Builder-Example

The following buttons and options are available in the WHERE Clause Editor:

Icon Component Function
Delete row deletes a criteria.
Move row up changes the sequence of the criteria. The selected criteria moves up.
The sequence of criteria can also be changed with Drag and drop.
Move row down changes the sequence of the criteria. The selected criteria moves down.
The sequence of criteria can also be changed with Drag and drop.
Column adds a column. Click on the component to select a column from the available tables.
SQL adds an Open SQL statement, see SAP Help: Open SQL.
Operator adds an operator e.g., =, <, >, etc.
Value adds a static value of type String, Number, Flag or List. List offers a separate editor to create lists of type String, Number or Select. Select enables usage of SELECT statements. For more information, see Working with Lists in the WHERE-Clause Editor.
Criteria adds a new criteria after the selected criteria.
Group adds a new group of criteria the selected criteria.

Note

When adding or editing a criteria only the relevant components are displayed e.g., Add Operator is only available if there is a column or SQL statement to use an operator on.

Edit and Delete Components

  • Click on a component to edit it. All areas that are marked green can be edited.
  • To delete a component, click the (x) icon above the component.

SAP System Fields

You can use SAP system fields for date and time in a WHERE clause. The usage of SAP system fields requires SAP NW 7.4 SP5 or higher and the custom function module /THEO/READ_TABLE.

Example:

  1. Navigate to WHERE Clause Editor and select a column of the type Date here: BUDAT .
    img-01
  2. Delete the criterion "Value" and use the criterion "SQL" .
    img-02
  3. Within the "SQL" criterion, use the supported system fields for date and time with a preceding "@" character, here: @sy-datum .
    img-03
  4. Click [Load live preview] to check the result.

Dynamic WHERE Clause with SSIS Variables

You can use SSIS variables and parameters as placeholders for filter values in the WHERE Clause. To parameterize the whole WHERE Clause, see Parameterization using Expression Properties.

  1. Define an SSIS variable / parameter. Make sure the data type of the variable matches the data type of the table records you want to filter.
  2. Open the Xtract Table component and navigate to the WHERE Clause tab.
  3. Click [Editor mode] to open the WHERE Clause Editor.
  4. Add a new filter criteria and use the [Default with Parameter] template.
    SSIS-variable
  5. Click inside the Parameter component. A drop-down-list that displays all available SSIS variables and parameters opens. Select your SSIS variable / parameter from the list.
  6. To test the WHERE clause, assign a default value for the SSIS variable and click [Load live preview].
  7. Click [OK] to save the component.
Last update: June 27, 2024