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You can either convert a Decimal object to a string: cursor = db.cursor() cursor.execute("""select * from table""") output = [] for row in cursor: output.append(str(row[4])) Or to a float: cursor = db.cursor() cursor.execute("""select * from table""") output = [] for row in cursor: output.append(float(row[4]))
25 Νοε 2008 · Can someone suggest a good way to convert from float to Decimal [...] perhaps limiting number of significant digits that can be supported? Short answer / solution: Yes. def ftod(val, prec = 15): return Decimal(val).quantize(Decimal(10)**-prec)
The result will show the original order_id and the corresponding decimal_amount. 6. CONVERT() with a Variable DECLARE @amount VARCHAR(10) = '123.45'; SELECT CONVERT(DECIMAL(10, 2), @amount) AS decimal_amount; This query uses a variable to store a string value and then converts it to a decimal data type with two decimal places. The result will be:
13 Φεβ 2022 · Return a conversion function for processing literal values that are to be rendered directly without using binds. Method: result _processor: Return a conversion function for processing result row values. Class Variable _default _decimal _return _scale: Undocumented: Instance Variable: asdecimal: Undocumented: Instance Variable: decimal _return ...
When creating new models you can actually pass normal (float) numbers, Pydantic will automatically convert them to Decimal types, and SQLModel will store them as Decimal types in the database (using SQLAlchemy).
2 ημέρες πριν · For example, Decimal((0, (1, 4, 1, 4), -3)) returns Decimal('1.414'). If value is a float, the binary floating-point value is losslessly converted to its exact decimal equivalent. This conversion can often require 53 or more digits of precision. For example, Decimal(float('1.1')) converts to Decimal('1.
6 ημέρες πριν · It provides an SQL interface compliant with the DB-API 2.0 specification described by PEP 249, and requires SQLite 3.15.2 or newer. This document includes four main sections: Tutorial teaches how to use the sqlite3 module. Reference describes the classes and functions this module defines.
