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A software package designed to define, manipulate, retrieve and manage data in a database data format, field names, record structure and file structure.
It is an association among several entities.
The DATE ADD returns the number of days between two date values.
An alter statement that is used to delete an existing column in the table.
Are said to exhibit physical data independence if they do not depend on the physical schema.
It logically represents subsets of data from one or more table.
It returns the session settings for a specified option.
This is used to test for values in a specified set of values.
Which of the following is the correct example of updating the LASTNAME to ‘REYES’ of all students from STUDENTS table whose STUD_ID is equal to 01020564?
A command that deletes the data inside a table, but not the table itself.
A function that returns the number of days between two date values.
The WHERE clause is not only used in SELECT statement, it is also used in UPDATE, DELETE statement, etc.
It returns the current date and time.
It subtracts a time/date interval from a date and then returns the date.
It returns 1 or 0 depending on whether an expression is NULL.
It converts a number from one numeric base system to another.
It returns the natural logarithm of a number to base 2.
An operator used to return all rows that are common to multiple queries.
It converts a value to a binary string.
A command which filters a result set to include only records that fulfill a specified condition.
This is use to create expression with number and date values.
This operator is used to return all rows from multiple queries or multiple tables.
This command specifies the values of an INSERT INTO statement.
The function repeat returns the position of the first occurrence of a substring in a string.
Reversing the order of the intersected tables does not alter the result.
It returns the arc tangent of one or two numbers.
It returns the value of a number raised to the power of another number.
A command that combines the result set of two or more SELECT statements or allows duplicate values.
It adds a time/date interval to a date and then returns the date.
It is the term generally used to describe what was done by large mainframe computers from the late 1940's until the early 1980's.
Write the SQL statement that selects all the customers from "Mexico" in the "Customers" table.
A copy of an existing table can also be created using CREATE TABLE.
This is used to in conditions that compare one expression with another value or expression.
It returns the position of the first occurrence of a string in another string.
It returns the character based on the ASCII code.
It returns a specified part of a date (as integer).
Write the SQL statement that will update the contactname to "Juan" for all records where country is "Mexico".
An operator used to search for a pattern.
It checks an expression and returns 1 if it is a valid date, otherwise 0.
This is used to perform wildcard searches of valid search string values.
The command to delete a view.
It returns the smallest integer value that is >= to a number.
Which of the following is the correct example inserting a new value to STUDENTS table that will only add new data to STUD_ID and LASTNAME? The stud_id is 10 and lastname is 'CRUZ' and the rest of the column is set to NULL.
It returns the current database system UTC date and time.
Write the SQL statement that deletes the table "Shippers".
It returns the position of a pattern in a string.
A numeric function that returns the number of records returned by a select query.
Write a SQL statement that truncates the table "Categories".
It is a collection of interrelated data and a set of programs to access those data.
An operator used to specify multiple possible values for a column.
A command that combines the result set of two or more SELECT statements (allows duplicate values).
A function that returns e raised to the power of a specified number.
It subtracts a time interval from a datetime and then returns the time/datetime.
The command which combines the result set of two or more SELECT statements or only a distinct values.
A syntax used to create a UNIQUE constraint on the "ID" column when the table is already created.
It converts a string to the upper-case.
The command that deletes the data inside a table, but not the table itself.
It removes leading and trailing spaces from a string.
A command that updates a view.
A function that adds two or more expressions together.
Which of the following is the correct example of modifying the column JOB_ID? Change the datatype size to 10.
It returns the remainder of a number divided by another number.
The pow function returns the value of a number raised to the power of another number.
It is a unit of data – is a symbol or a set of symbols which is used to represent something.
Which of the following is not true about writing SQL statements?
It compares two expressions and returns null if they are equal. Otherwise, the first expression is returned.
A function that returns a string of the specified number of space characters.
The IFNULL returns a value if a condition is TRUE, or another value if a condition is FALSE.
The UPDATE constraint ensures that all values in a column are unique.
True/False. This symbol % denotes zero or many characters.
The command used to create a new table in the database.
It returns the position of a string within a list of strings.
The rows in the first query that are not present in the second query.
The NULL values or blank data in the report are not ignored during duplicate checking.
A numeric function that returns the smallest integer value that is >= to a number.
It compares two strings.
A command which deletes a table in the database.
True/False Character values are format sensitive and date values are case sensitive-sensitive.
It returns a date from a numeric datevalue.
This is used to restrict the rows that are returned by a query.
It returns the AUTO_INCREMENT id of the last row that has been inserted or updated in a table.
The command which deletes the data inside a table, but not the table itself.
A function that returns the maximum value in a set of values.
It returns the number of days between a date and date "0000-00-00".
The command specifies the values of an INSERT INTO statement.
The command that adds, deletes or modifies columns in a table.
It returns the user name and hostname for the MySQL account that the server used to authenticate the current client.
The DROP table command also adds and deletes various constraints in a table.
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