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Why do I get an error with SQL-cast as numeric?
A case expression returns a single value. That value has a single type. Your case expression is returning both a number and a string. The number takes precedence, so SQL Server attempts to convert the string to a number. Hence, your error. You could fix this by dispensing with the ‘V’ and just using NULL:
How many significant digits does SQL Server support?
Informatica (connected through the SQL Server PDW Informatica Connector) only supports 16 significant digits, regardless of the precision and scale specified. For decimal and numeric data types, SQL Server considers each combination of precision and scale as a different data type.
What happens when you convert decimal to numeric in SQL Server?
Converting from decimal or numeric to float or real can cause some loss of precision. Converting from int, smallint, tinyint, float, real, money, or smallmoney to either decimal or numeric can cause overflow. By default, SQL Server uses rounding when converting a number to a decimal or numeric value with a lower precision and scale.
When to use try _ cast in SQL Server?
Use TRY_CAST as suggested in the other answer: A case expression returns a single value. That value has a single type. Your case expression is returning both a number and a string. The number takes precedence, so SQL Server attempts to convert the string to a number. Hence, your error.
When to use the isnumeric method in SQL?
Having said that, I discourage using ISNUMERIC because it returns true for nonsense values such as $ and -. Use TRY_CAST as suggested in the other answer: A case expression returns a single value. That value has a single type. Your case expression is returning both a number and a string.
How do you change decimal places in access query?
Open the table in Design View. In the upper section of the design grid, select the Date/Time field that you want to format. In the Field Properties section, select the General tab, click the cell next to the Format box and enter the specific characters based on your formatting needs.
How to format a number or currency field access?
Access provides several predefined formats for number and currency data. The default format is to display the number as entered. Tip You can use the DecimalPlaces property to override the default number of decimal places for the predefined format specified for the Format property. Open the table in Design View.