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SQL SELECT Statement - W3Schools
https://www.w3schools.com/sql/sql_select.asp
SELECT Syntax. SELECT column1, column2, ... FROM table_name;. Here, column1, column2, ... are the field names of the table you want to select data from . If you want to select all the fields available in the table, use the following syntax:.
SQL SELECT DISTINCT Statement - W3Schools
https://www.w3schools.com/sql/sql_distinct.asp
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SQL SELECT TOP, LIMIT, ROWNUM - W3Schools
https://www.w3schools.com/sql/sql_top.asp
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SQL NULL Values - IS NULL and IS NOT NULL - W3Schools
https://www.w3schools.com/sql/sql_null_values.asp
What is a NULL Value? A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this field. Then, the field will be saved with a NULL value.
MySQL FIELD() Function - W3Schools
https://www.w3schools.com/sql/func_mysql_field.asp
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SQL SET - W3Schools
https://www.w3schools.com/sql/sql_ref_set.asp
Example. UPDATE Customers SET ContactName = 'Alfred Schmidt', City= ' Frankfurt' WHERE CustomerID = 1;. Try it Yourself ». The following SQL will update the "ContactName" field to "Juan" for all records where Country is "Mexico ": ...
SQL BETWEEN Operator - W3Schools
https://www.w3schools.com/sql/sql_between.asp
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SQL SELECT TOP, LIMIT, ROWNUM - W3Schools
https://www.w3schools.com/sql/sql_ref_top.asp
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SQL MIN() and MAX() Functions - W3Schools
https://www.w3schools.com/sql/sql_min_max.asp
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SQL ANY and ALL Operators - W3Schools
https://www.w3schools.com/sql/sql_any_all.asp
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