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Description

This error indicates that a parameter passed to a SQLScript built-in function or procedure is not of the expected type, specifically a vector of columns or aggregations. It typically occurs during the execution of custom SQLScript code, analytical views, or reports that involve data manipulation within the SAP HANA database.

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Error Message

ERR_SQLSCRIPT_BUILTIN_PARAM_NOT_COL_OR_AGGR_VECTOR: Parameter must be a vector of columns or aggregations

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Known Causes

3 known causes

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Incorrect Parameter Type

A scalar value, a literal, or an incompatible data structure was provided to a SQLScript function or procedure that strictly expects a vector of columns or aggregations.

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Misunderstanding SQLScript Requirements

The developer or user did not correctly interpret the input parameter requirements for a specific SQLScript built-in function, leading to incorrect usage.

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Data Structure Mismatch

The structure of the input data, such as a table variable or a derived set, does not conform to the vector format required by the SQLScript operation.

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Solutions

3 solutions available

1. Verify SQLScript Parameter Definition easy

Ensure all parameters used in the SQLScript are correctly defined as column vectors or aggregation vectors.

1

Identify the SQLScript that is throwing the error. This is usually found in the application logs or debugging output when the error occurs.

2

Examine the parameter declarations within the SQLScript. Look for parameters that are intended to represent a collection of columns or aggregation results.

DECLARE my_column_vector TABLE TYPE T_COLUMN_VECTOR;
DECLARE my_aggregation_vector TABLE TYPE T_AGGREGATION_VECTOR;

3

If a parameter is declared as a single scalar value but is being used in a context expecting a vector (e.g., passed to a function expecting multiple columns), correct its declaration to be a table type that can hold multiple values.

--- Incorrect Declaration (if expecting a vector) ---
-- DECLARE my_scalar_param VARCHAR(100);

--- Correct Declaration ---
DECLARE my_column_vector TABLE TYPE T_COLUMN_VECTOR;
-- Or if it's an aggregation result:
DECLARE my_aggregation_vector TABLE TYPE T_AGGREGATION_VECTOR;

4

Ensure that when you are populating these vector parameters, you are indeed providing a set of columns or aggregation results, not a single scalar value.

--- Example of populating a column vector ---
INSERT INTO :my_column_vector (COLUMN_NAME)
SELECT column_name FROM information_schema.columns WHERE table_name = 'MY_TABLE' AND schema_name = 'MY_SCHEMA';

--- Example of populating an aggregation vector ---
INSERT INTO :my_aggregation_vector (AGGREGATION_NAME, AGGREGATION_EXPRESSION)
SELECT 'SUM_SALES', 'SUM(SALES)';

2. Review Function/Procedure Calls medium

Verify that functions or procedures are called with the correct types of arguments, especially when expecting vector inputs.

1

Identify the specific function or procedure call within the SQLScript that is causing the error. This will be evident from the stack trace or error context.

2

Consult the documentation for the called function or procedure to understand its parameter requirements. Pay close attention to parameters that expect a vector of columns or aggregations.

3

Check the type of the variable being passed to this parameter. If the function/procedure expects a vector (e.g., `T_COLUMN_VECTOR` or `T_AGGREGATION_VECTOR`), ensure the passed variable is of that specific table type.

--- Assuming a function `MY_FUNCTION` that expects a column vector ---
-- Incorrect call:
-- CALL MY_FUNCTION(:my_scalar_variable);

-- Correct call:
DECLARE my_column_vector TABLE TYPE T_COLUMN_VECTOR;
-- Populate my_column_vector...
CALL MY_FUNCTION(:my_column_vector);

4

If you are dynamically constructing the parameters, ensure that the final structure passed to the function/procedure adheres to the expected vector format.

3. Correct Data Type for Dynamic Column Selection medium

When dynamically selecting columns, ensure the data type used to store these column names is appropriate for a vector.

1

Locate the part of the SQLScript where you are dynamically fetching or constructing a list of column names to be used in a subsequent operation.

2

Verify how these column names are being stored. If they are intended to be passed as a vector to another SQLScript object (like a procedure or a built-in function), they should be stored in a table type designed for column vectors (e.g., `T_COLUMN_VECTOR`).

--- Example of incorrect storage ---
-- DECLARE column_list VARCHAR(5000);
-- column_list = 'COL1, COL2, COL3'; -- This is a string, not a vector

--- Example of correct storage ---
DECLARE my_column_vector TABLE TYPE T_COLUMN_VECTOR;
INSERT INTO :my_column_vector (COLUMN_NAME)
SELECT column_name FROM information_schema.columns WHERE table_name = 'YOUR_TABLE' AND schema_name = 'YOUR_SCHEMA';

3

If you are building the vector from a string of comma-separated column names, you will need to parse this string and insert each column name as a separate row into the `T_COLUMN_VECTOR` table type.

--- Pseudocode for parsing and inserting ---
DECLARE column_string VARCHAR(5000) := 'COLUMN1, COLUMN2, COLUMN3';
DECLARE temp_table TABLE (col_name VARCHAR(256));

-- Logic to split column_string into rows and insert into temp_table
-- ... (This part might involve string manipulation functions or temporary tables)

INSERT INTO :my_column_vector (COLUMN_NAME)
SELECT col_name FROM :temp_table;

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Related Errors

5 related errors

SAP S/4HANA Error 1323: SQLScript Parameter Vector Mismatch