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Description

Error 1289, ERR_SQLSCRIPT_NOT_INTO_TARGET, indicates an issue with the expression used in an INTO clause within an SAP HANA SQLScript procedure or function. This typically occurs when the expression's result cannot be assigned to the target variable or parameter due to type incompatibility or an incorrect number of rows.

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Error Message

ERR_SQLSCRIPT_NOT_INTO_TARGET: Not allowed expression for INTO-target

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Known Causes

3 known causes

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Data Type Mismatch

The data type of the expression being assigned to the INTO target variable does not match its declared data type.

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Multiple Rows Assigned to Scalar

A SELECT statement intended to assign a single value to a scalar variable returns multiple rows, which is not permissible for a scalar target.

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Unsupported Expression Type

The expression within the INTO clause evaluates to a complex or unsupported data structure that cannot be assigned directly to the simple target variable.

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Solutions

3 solutions available

1. Ensure INTO Target is a Valid Host Variable or Table Variable easy

Correctly assign the result of a SELECT INTO statement to a scalar host variable or a table variable.

1

Review the SQLScript code that is failing. Identify the `SELECT INTO` statement.

Example of incorrect usage:
SELECT column1, column2 INTO table_variable FROM my_table WHERE id = 1;

Example of correct usage with a scalar host variable:
DECLARE lv_column1 VARCHAR(50);
DECLARE lv_column2 INT;
SELECT column1, column2 INTO lv_column1, lv_column2 FROM my_table WHERE id = 1;

2

Verify that the target of the `INTO` clause is either a declared host variable (scalar) or a table variable (for returning multiple rows). An invalid target, such as an attempt to directly assign to a column in a table that is not part of the `SELECT` list or a non-existent variable, will cause this error.

Example of correct usage with a table variable:
DECLARE lt_results TABLE LIKE my_table;
SELECT * INTO lt_results FROM my_table WHERE id = 1;

3

If the intention was to update an existing table, use an `UPDATE` statement instead of `SELECT INTO`.

Example of updating an existing table:
UPDATE my_table SET column1 = 'new_value' WHERE id = 1;

2. Validate Data Type Compatibility for INTO Target medium

Ensure the data types of the selected columns match the data types of the INTO target variables.

1

Examine the `SELECT` list and the declared variables in the `INTO` clause. Note the data types of each selected column.

Example: SELECT char_column, int_column INTO lv_string_variable, lv_integer_variable FROM my_table;

2

Compare these data types with the declared data types of the host variables or table variables used in the `INTO` clause. Mismatched types (e.g., trying to select a large string into a small integer variable, or vice-versa) can lead to this error.

Example of incompatible types:
DECLARE lv_small_int INT;
SELECT large_varchar_column INTO lv_small_int FROM my_table;

Example of compatible types:
DECLARE lv_varchar_var VARCHAR(255);
DECLARE lv_int_var INT;
SELECT char_column, int_column INTO lv_varchar_var, lv_int_var FROM my_table;

3

If there's a type mismatch, adjust the declared variable types to accommodate the data from the selected columns. Explicitly cast data types if necessary, but ensure the cast is valid.

Example with casting:
DECLARE lv_string_representation VARCHAR(50);
SELECT CAST(numeric_column AS VARCHAR(50)) INTO lv_string_representation FROM my_table;

3. Handle Potential Multiple Rows with SELECT INTO medium

Use appropriate techniques when a SELECT INTO statement might return more than one row.

1

Understand that `SELECT INTO` is designed to retrieve a single row. If the `WHERE` clause in your `SELECT` statement can potentially return multiple rows, this error will occur.

Example that can cause the error:
SELECT column1 INTO lv_value FROM my_table WHERE category = 'Electronics';

2

If you expect multiple rows and want to process them, use a cursor or a table variable to store the results.

Example using a table variable:
DECLARE lt_results TABLE LIKE my_table;
SELECT * INTO lt_results FROM my_table WHERE category = 'Electronics';
-- Now process rows in lt_results

3

If you only need one specific row from a set of potentially multiple rows, refine your `WHERE` clause to be more specific, or use `LIMIT 1` (if supported by the specific SQL dialect within S/4HANA, though less common for `SELECT INTO`) or add an ordering and fetch the first row. Alternatively, if you want to aggregate results, use aggregate functions.

Example with aggregation:
SELECT COUNT(*) INTO lv_count FROM my_table WHERE category = 'Electronics';

Example with explicit first row selection (syntax may vary):
DECLARE lv_first_column_value VARCHAR(100);
SELECT column1 INTO lv_first_column_value FROM my_table WHERE category = 'Electronics' ORDER BY some_ordering_column LIMIT 1;

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Related Errors

5 related errors

SAP S/4HANA Error 1289: Invalid SQLScript INTO Target