What are the different SQL data types and their usage?
An example of an AI chatbot conversation about SQL data types and their usage in databases.
What are the different SQL data types and their usage?
SQL data types define the type of data that can be stored in a column. Common types include INT, VARCHAR, DATE, and BOOLEAN.
Can you explain the difference between VARCHAR and CHAR?
VARCHAR is a variable-length string, while CHAR is a fixed-length string. Use VARCHAR for variable data and CHAR for fixed-length data.
When should I use DATE vs. DATETIME?
Use DATE for storing dates without time and DATETIME for storing both date and time. It depends on your data requirements.
What about numeric data types?
Numeric data types include INT, FLOAT, and DECIMAL. Use INT for whole numbers, FLOAT for approximate values, and DECIMAL for exact values.
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