标签: teradata
我有一个FLOAT列Teradata,因为行数显示为'n. def.' 已填充'n. def.'对应于numpy' nan'
'n. def.'
我正试图抓住那些'n. def.'值。
NULL
SEL * where mycol BETWEEN 0.0 AND 1.0
n. def.
CAST (col_1 AS CHAR(200)) AS col_1_str
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