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  2. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    This list includes SQL reserved words – aka SQL reserved keywords, [1] [2] as the SQL:2023 specifies and some RDBMSs have added. Reserved words in SQL and related products In SQL:2023 [ 3 ]

  3. Null (SQL) - Wikipedia

    en.wikipedia.org/wiki/Null_(SQL)

    These mistakes are usually the result of confusion between Null and either 0 (zero) or an empty string (a string value with a length of zero, represented in SQL as ''). Null is defined by the SQL standard as different from both an empty string and the numerical value 0, however. While Null indicates the absence of any value, the empty string ...

  4. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    The Null marker indicates the absence of a value, and is distinct from a value of 0 for an integer column or an empty string for a text column. The concept of Nulls enforces the 3-valued-logic in SQL, which is a concrete implementation of the general 3-valued logic. [12]

  5. Select (SQL) - Wikipedia

    en.wikipedia.org/wiki/Select_(SQL)

    SELECT list is the list of columns or SQL expressions to be returned by the query. This is approximately the relational algebra projection operation. AS optionally provides an alias for each column or expression in the SELECT list. This is the relational algebra rename operation. FROM specifies from which table to get the data. [3]

  6. Cardinality (SQL statements) - Wikipedia

    en.wikipedia.org/wiki/Cardinality_(SQL_statements)

    High-cardinality refers to columns with values that are very uncommon or unique. High-cardinality column values are typically identification numbers, email addresses, or user names. An example of a data table column with high-cardinality would be a USERS table with a column named USER_ID. This column would contain unique values of 1-n. Each ...

  7. This NC man was slapped with almost $1,000 in toll fees from ...

    www.aol.com/finance/nc-man-slapped-almost-1...

    Greg Underhill, from Clayton, North Carolina, was shocked to receive over $1,000 in toll charges—from states he says he's never even visited.

  8. First normal form - Wikipedia

    en.wikipedia.org/wiki/First_normal_form

    SQL-92 does not support creating or using table-valued columns, which means that using only the "traditional relational database features" (excluding extensions even if they were later standardized) most relational databases will be in first normal form by necessity.

  9. Should You Skip Your Weight-Loss Injectable to Enjoy ... - AOL

    www.aol.com/lifestyle/skip-weight-loss-inject...

    Related: Mounjaro Is 'Significantly' More Effective for Weight Loss Than Ozempic, Study Says Plus, your body is simply not used to that level of consumption. “You can't just assume that, ‘Oh ...