What are the different SQL data types?
SQL data types are categorized into several types, including INTEGER, VARCHAR, DATE, and BOOLEAN. Each type serves a specific purpose.
How do I convert a VARCHAR to an INTEGER in SQL?
You can use the CAST or CONVERT function. For example: SELECT CAST(your_column AS INTEGER) FROM your_table;
.
Are there any risks when converting data types?
Yes, converting data types can lead to data loss or errors if the conversion is not compatible. Always validate your data.
Can you give me an example of converting a DATE to a STRING?
Sure! You can use FORMAT(your_date_column, 'yyyy-MM-dd')
to convert a DATE to a STRING in SQL.
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