When two conditions must both be true for the rows to be selected, the conditions are separated by the SQL AND keyword. To refer to a set of values needed for a condition, use the SQL IN operator. To exclude one or more values using a condition, the SQL OUT keyword must be used.
Which SQL operator can be used when two conditions must both be true for the rows to be selected?
The OR operator. The OR operator’s important characteristics are: OR connects two conditions and returns true if either condition is true or if both conditions are true. Table 4.4 shows the OR truth table.
Which SQL keyword is used to state the condition that specifies which rows are to be selected?
The SQL WHERE clause contains the condition that specifies which rows are to be selected. The result of an SQL SELECT operation can contain duplicate rows. To have SQL automatically eliminate duplicate rows from a result, use the keyword DISTINCT with the FROM keyword.
Which SQL keyword indicates that for two conditions in a Boolean expression either condition could be true?
SQL Logical OR operator
Logical OR compares two Booleans as expression and returns TRUE when either of the conditions is TRUE and returns FALSE when both are FALSE. otherwise, returns UNKNOWN (an operator that has one or two NULL expressions returns UNKNOWN).
Which SQL keyword is used to specify a condition that rows must meet to be included in the results of an SQL select query group of answer choices?
In SQL, the WHERE clause is used to specify which columns will be included in the result. In SQL, multiple conditions in the WHERE clause can be combined by using the SQL AND keyword. In SQL, to refer to a range of values in a WHERE clause, use the WITHIN keyword.
How can use two conditions in SQL query?
The SQL AND condition and OR condition can be combined to test for multiple conditions in a SELECT, INSERT, UPDATE, or DELETE statement. When combining these conditions, it is important to use parentheses so that the database knows what order to evaluate each condition.
Which two are true about a SQL statement using set operators such as Union choose two?
Which two are true about a SQL statement using SET operators such as UNION? … The names and number of columns must be identical for all SELECT statements in the query.
Which of the following is true of rows within a relation?
Which of the following is true of rows within a relation? A row will always be unique. … The cardinality of a relation is the number of tuples it contains. Ken wants to use a subset of SQL to insert data into several of his database tables.
Which clause is used for sorting rows in SQL?
The SQL ORDER BY clause is used to sort the data in ascending or descending order, based on one or more columns.
How use true or false in SQL?
There is no boolean data type in SQL Server. However, a common option is to use the BIT data type. A BIT data type is used to store bit values from 1 to 64. So, a BIT field can be used for booleans, providing 1 for TRUE and 0 for FALSE.
Is true in MySQL?
A Boolean is the simplest data type that always returns two possible values, either true or false. … MySQL does not contain built-in Boolean or Bool data type. They provide a TINYINT data type instead of Boolean or Bool data types. MySQL considered value zero as false and non-zero value as true.
What is the name of the SQL clause that identifies the query criteria?
In a SQL statement, the WHERE clause specifies criteria that field values must meet for the records that contain the values to be included in the query results.
Which statement about SQL is true?
The correct answer is, option (a): Null values are displayed last in the ascending sequences. And rest all are incorrect answers pertaining to SQL.
Which of the following SQL commands would be used to remove both the data and the table structure?
The SQL DROP command is used to remove an object from the database. If you drop a table, all the rows in the table is deleted and the table structure is removed from the database.
When three or more and/or conditions are combined it is easier to use the SQL keywords?
When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s): A. LIKE only.