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A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, SELECT is the most commonly used data manipulation language (DML) command. As SQL is a declarative programming language, SELECT queries specify a result set, but do not specify how to calculate it.
A query includes a list of columns to include in the final result, normally immediately following the SELECT keyword. An asterisk ("*") can be used to specify that the query should return all columns of the queried tables. SELECT is the most complex statement in SQL, with optional keywords and clauses that include:
A programmer can use an alias to temporarily assign another name to a table or column for the duration of the current SELECT query. Assigning an alias does not actually rename the column or table. This is often useful when either tables or their columns have very long or complex names. An alias name could be anything, but usually it is kept short.
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Social ties, for example, can be analyzed in terms of an individual's perception of the relationships between his or her self (p), another person (o), and the topic (e.g., issue, belief, value, object) of focus (x). According to Heider, a balanced triangle is accomplished when all three links are positive, or two are negative and one is ...
In other areas, such as in a vote, there may be a method to break the tie. Having an odd number of voters is one solution—after the election of the Doge of Venice by a committee of 40 was deadlocked in a tie, the number of electors was increased to 41—but may not always be successful, for example, if a member is absent or abstains, or if there are more than two candidates.
Tie (engineering), a strong component designed to keep two objects closely linked together Railroad tie, a rectangular support for the rail; Tensilica Instruction Extension, a verilog-like language that is used to describe the instruction extensions to the Xtensa processor core
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