Thank you! I changed my sql query such that  both arguments inside the VECTOR_COSINE() function should be $vector. i.e. sql = "select top 3 maxID, activity, outcome from Main.KimAITest order by VECTOR_COSINE(TO_VECTOR(Embeddings, double), TO_VECTOR(:newembeddingstr, double)) desc" I no longer see the same errors as previously mentioned, but now the for loop on the result set is returning an error. 

Loop failed with SQLCODE: -400 ObjectScript error: <ZVOPL>%0AmBs1^%sqlcq.USER.cls151.1

The same for loop works when the sql query does not include the VECTOR_COSINE() function.

Thanks! Here is the result of print(new_embedding_str): -0.012367633, 0.08229666, -0.045526657, -0.021790344, -0.09783857, 0.011233694, 0.11478377, 0.015476992, 0.066593476, -0.028646931, -0.00035714556, -0.020890323, -0.014966787, -0.009651463, -0.04823198, 0.02970142, -0.03654133, -0.0733902, -0.077465616, -0.007498019, 0.007159351, 0.115939245, -0.053096283, -0.0019092769, 0.03061681, 0.060498957, -0.0109981615, 0.05554405, 0.06436163, 0.0010217681, 0.008984506, -0.01909181, 0.049410313, -0.0046289866, -0.0002824377, 0.043872904, -0.03933238, 0.0070418958, 0.04450893, 0.0057665105, 0.029787099, -0.106896654, -0.010929529, 0.019587921, -0.031226052, 0.054222684, -0.053108577, 0.023915643, 0.016592344, -0.045376964, 0.056992017, -0.074442, -0.0842688, -0.031837333, 0.06094658, 0.069696166, 0.016502133, 0.006163614, 0.042928968, 0.059463773, 0.051030602, -0.0009090814, -0.018656455, 0.050873574, 0.04656456, -0.04863924, 0.0071582315, -0.05078049, -0.008812764, -0.09778179, -0.028910201, 0.0030154034, -0.007890963, 0.09406418, 0.012195868, -0.0032306092, 0.029213682, -0.08315854, 0.099823065, 0.14098983, -0.034719538, -0.069456525, -0.01513024, 0.042170536, -0.013932263, 0.06428065, 0.018271074, -0.0077171763, -0.03326928, -0.018273575, -0.05889311, -0.039047785, 0.031104289, -0.008865226, -0.035700947, 0.039564047, -0.060396545, 0.009985891, -0.07055272, 0.1288366, 0.01864772, 0.0060013114, 0.066211775, -0.021810597, -0.07669776, -0.049433775, 0.010740815, 0.035635687, 0.053287655, -0.068942666, -0.056721188, -0.02227402, -0.040967852, -0.0016006116, -0.061532926, -0.033666585, -0.056064934, 0.03403046, 0.046199817, 0.06698784, 0.060698483, -0.058410134, -0.07579008, -0.018291337, -0.06771481, -0.058569603, 0.033723082, -7.52444e-33, 0.009717529, 0.031346004, 0.07498145, -0.06071525, 0.0041581895, 0.0024989324, -0.10493763, 0.022117518, -0.015239807, -0.048102356, -0.043640785, -0.06609356, 0.007661355, -0.017238742, 0.06961938, -0.061138105, 0.050104957, 0.04784467, 0.0031345962, -0.020252144, -0.06554345, 0.1011566, 0.04156833, -0.10441905, -0.05407763, -0.037749078, 0.009589713, -0.046128895, 0.05732413, 0.022369683, 0.009047337, -0.052184585, 0.003846389, -0.015119601, 0.01722195, -0.040975425, 0.034113463, -0.03093567, -0.006747672, 0.0008930639, -0.015441975, -0.06361249, 0.0036032437, 0.03340732, 0.03015114, 0.033482574, 0.0052873297, -0.0019037911, -0.06700053, -0.020265548, 0.044921134, 0.0075110453, 0.043736465, 0.02989835, -0.001148476, -0.0101042045, 0.049161088, 0.024709491, -0.09946261, 0.0063731205, -0.030562524, 0.061343204, 0.030892957, 0.018738467, -0.026431091, 0.0060403524, 0.045076493, -0.032179367, 0.0555283, 0.025604432, -0.08719626, 0.012434642, 0.023987422, 0.034689777, -0.049034715, -0.055082064, -0.0054916176, 0.011287644, 0.027124986, 0.017873017, -0.103416376, -0.089201406, 0.020051159, 0.038698107, -0.022287738, 0.008249157, -0.029930592, -0.1644036, 0.028224042, -0.019334221, -0.08657236, -0.05819561, -0.09543146, -0.023918334, 0.077383414, 3.4810153e-33, 0.020336987, 0.05965215, -0.069160566, 0.04744932, 0.10784883, -0.0018692117, 0.046611253, 0.061773244, -0.061153416, 0.051496595, -0.0023423578, 0.028044755, 0.020787673, -0.012962601, 0.10118507, 0.05530823, 0.014362301, 0.030259274, 0.035992704, -0.021907462, -0.03618004, 0.036039226, -0.03216552, -0.0009927913, -0.01762192, 0.059019443, 0.092808425, -0.0886788, 0.02172343, 0.05927173, -0.05763399, -0.058060993, 0.06465574, 0.020360274, -0.11098842, 0.039607946, 0.15205052, -0.041188046, -0.026513787, -0.016015524, 0.026130088, 0.06341589, 0.07706007, 0.10055258, -0.049063258, -0.030709844, 0.0024071054, 0.037557274, 0.0134173455, 0.04175756, 0.014264862, -0.042392667, 0.02398161, -0.012472425, -0.028243985, 0.05818705, -0.13230394, -0.00079989113, -0.018629689, 0.016585136, -0.066821516, 0.001377592, -0.014958773, 0.024381585, 0.042036515, -0.0039283433, -0.03435791, -0.030376079, -0.053603675, -0.09048265, 0.097804986, 0.0257748, -0.13503976, -0.029972358, -0.0062397476, -0.07655412, -0.028073613, -0.002961969, -0.02508737, 0.0697685, 0.052836604, 0.008967755, 0.019639365, 0.023614386, 0.009734772, -0.07505753, -0.0038914427, 0.11299017, -0.047973536, 0.031216266, 0.01108175, 0.0918755, -0.04206866, 0.055191476, -0.043200813, -1.5496786e-08, 0.023434758, -0.009669568, -0.060132094, -0.03594698, 0.02324335, 0.094348945, 0.020180248, -0.14573996, -0.014434391, -0.022762574, 0.027893221, -0.009096078, -0.06613074, -0.015954193, 0.024300676, -0.013187228, -0.053018987, -0.031342704, -0.039301537, 0.06303767, -0.013777301, -0.016790744, -0.036375914, -0.039216142, -0.02706131, 0.02465825, -0.038558148, 0.12131968, 0.009228927, 0.059315138, 0.061568566, 0.1151985, -0.024498144, -0.02873189, -0.087456346, 0.06311445, 0.018630201, -0.038958035, 0.059134826, -0.003913152, 0.05524228, 0.03242394, -0.0332109, 0.07078217, -0.029175876, -0.010001539, 0.02611168, -0.059106592, -0.04523128, -0.01344679, 0.009532376, -0.0101005845, 0.059452664, 0.01845829, -0.018972963, -0.03161491, -0.027005812, 0.020496355, -0.07044746, 0.06034374, 0.042089693, -0.031130666, 0.09647217, 0.0023168556

This is also the format the embeddings are stored (1 embedding per row) in the vector database. The main difference between what is printed here and what I am familiar with when using Jupyter Notebook/Google Colab is the array isn't wrapped in square brackets and it hasn't been converted to a numpy array format but I don't think that is the issue here...?

Yep, this bypasses the parameter issue Benjamin described, but I still get this error. ObjectScript error: <PYTHON EXCEPTION> *<class 'OSError'>: isc_stdout_write: PyArg_ParseTuple failed!

Thanks for responding, I tried your suggestions, unfortunately I still get a sql error.

"SQLCODE: -29  Field 'NEW_EMBEDDING_STR' not found in the applicable tables^ SELECT TOP ? maxID , activity , outcome FROM Main . AITest ORDER BY VECTOR_COSINE ( Embeddings , new_embedding_str )
 Field 'NEW_EMBEDDING_STR' not found in the applicable tables^ SELECT TOP ? maxID , activity , outcome FROM Main . AITest ORDER BY VECTOR_COSINE ( Embeddings , new_embedding_str )"

Thanks, I don't seem to have any issues with TO_VECTOR() and adding the embedding(s) to the %vector column as long as I add the comma as a separator in the array. The issue seems to be with using VECTOR_COSINE() and VECTOR_DOT_PRODUCT() in the sql query. Is there any other way of retrieving the embeddings from the %vector column to calculate the cosine similarity?