The SQL ISNUMERIC function checks the input expression for a valid numeric data type. It returns 1 if the input value is

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SQL ISNUMERIC Function (Transact SQL)

Use the SQL NULLIF function to compare two input expressions and returns NULL if both are equal. Description Like the COALESCE function,

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SQL NULLIF Function (Transact SQL)

Use the SQL Server DECIMAL data type to define columns that have fixed precision and scale.  Unlike FLOAT, DECIMAL data type has fixed decimal

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SQL DECIMAL Data Type

Use the SQL Server FLOAT data type to define columns, variables, and parameters storing floating-point numbers.  By floating point, we mean, numbers that have no fixed decimal place.  Consider

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SQL Server FLOAT Data Type

Use the SQL Server VARCHAR data type to define columns, variables, and parameters variable length characters.  VARCHAR types are variable in length.  They do not

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VARCHAR Data Type

Use the SQL Server INT data type to define columns, variables, and parameters storing whole numbers.  The INT data type stores a number in the

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SQL INT Data Type