# Date, Number, and String Functions

Use built-in date, number, and string functions to transform table data.

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Oftentimes, data in columns of tables is not in the exact format we need to complete our desired analysis. We may need to extract a date from a full timestamp, manipulate a number, or combine first...

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We'll begin with dates. Dates are often written in the following format 1. Date: YYYY-MM-DD 2. Datetime or Timestamp: YYYY-MM-DD hh:mm:ss We can use SQL's date functions to transform ...

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Nice work! Now let's assume that we have a column in our [...] table named [...] in the format YYYY-MM-DD hh:mm:ss. We'd like to know the number of [...] manufactured by day, and not by sec...

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Given a datepart and a column of date or timestamp data type, we can increment date or timestamp values by a specified interval. For example, in SQLite, the statement [...] Would return a tim...

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Great work! Numeric functions can be used to transform numbers. Some common SQLite mathematical functions are included below that take numeric data types as inputs: - [...] : Returns the sum of ...

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A couple more useful numeric SQL functions are included below: [...] and [...] . [...] : returns the greatest value in the set of the input numeric expressions [...] : returns the least valu...

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String manipulation can be useful to derive information from columns. We'll cover a couple of the common string functions here. A common use case for string manipulation in SQL is concatenation o...

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Another useful string function in SQL is [...] : [...] The function returns the string [...] with all occurrences of the string [...] replaced by the string [...] . For example in [...]...

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Congratulations! You just learned about date, number, and string functions in SQL. What can we generalize so far? Date Functions: * [...] ; Returns the date and time of the column specified. Th...