Scripture Sunday - The Sermon on the Mount.Learning About Bees Activities for Kids.Greater Than Less Than Activities for Kids.You can use the NOT operator to negate the condition provided by the >= operator. This resulted in only one city from Overijssel being returned, as opposed to two in the previous query. This time we got only those cities that satisfied both Population >= 100000 OR District = 'Overijssel' and Name >= 'Overijssel'. That would give us the same result as the previous query without parentheses.īut look what happens when we move the parentheses to the OR condition. This is like doing the following: SELECT * FROM city We can tell just by looking at this that all cities from the Overijssel district will be returned, plus any cities that satisfy the first criteria. Therefore we got rows that satisfied either Name >= 'Zukovski' AND Population >= 100000 or District = 'Overijssel'. In this query, I didn’t provide any parentheses, and so the AND operator was evaluated before the OR operator. | 15 | Enschede | NLD | Overijssel | 149544 | Parentheses have a higher precedence than all operators, and so you can use parentheses to specify the order in which each condition should be evaluated.Ĭonsider the following example: SELECT * FROM city It also evaluates any AND operators before any OR operators. For example, it evaluates any conditional operators before any logical operators, such as AND and OR. Note that SQL has an order of precedence that it assigns to different operator types. You can also use a combination of operators when filtering the results. WHERE Name >= 'Zukovski' AND Population >= 200000 If you have multiple conditions, you can use multiple >= operators. When comparing with a string value, use quotes around the string. You can also use the greater than or equal to operator to compare string values. Here’s an example to demonstrate using the greater than or equal to operator to compare date values. Or we could simply use the greater than ( >) operator instead: SELECT * FROM city If we wanted to exclude cities with that population, we would either need to increase the specified value: SELECT * FROM city The greater than or equal to operator includes the specified value in its evaluation.įor example, the previous query included Karachi, which, according to this database, has a population of exactly 9269265. This query returns all cities that have a population of greater than or equal to 9269265. | ID | Name | Countr圜ode | District | Population | In SQL, the greater than or equal to operator ( >=) compares two expressions and returns TRUE if the left operand has a value greater than or equal to the right operand otherwise, it returns FALSE.
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