TO_CHAR

• TO_CHAR(COLUMN_EXPRESSION)

Casts the input to a string value. If the input is a boolean, it will be cast to 'true' if it is true and 'false' if it is false. If the input is NULL, the output will be NULL.

Example:

We are given table1 with columns a and b and c

table1 = pd.DataFrame({
    'a': [1.1, 0, 2],
    'b': [True, False, True],
    'c': [None, 1, 0]
})

upon query

SELECT
    TO_CHAR(a) AS a,
    TO_CHAR(b) AS b,
    TO_CHAR(c) AS c
FROM table1;

we will get the following output:

    a      b      c
0  1.1   true   <NA>
1    0  false      1
2    2   true      0