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When joining tables must they be joined in the same order that appear in the FROM clause?
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What does the Join SQL clause feature in computer programming?
A Join SQL clause is a combination of two or more tables from a database. Fields are joined by using data that is present in both tables and are written as an identification for the join.
What basic clause in an SQL statement is used to retrieve rows and columns from tables?
The SELECT clause is used to retrieve rows and columns from tables. Ex: Select * from employee
What is a join line in access?
the line joining two tables
How many tables can be joined together at a time in oracle?
254
What is the difference between projecting and joining?
projecting: manipulating data to eliminate columns in a table. Joining: manipulating data to combine two or more tables.
When tables are joined in query it is not possible to restrict retrieval by using criterion?
False
What is spurious tuples?
A spurious tuple is a record in database that get created when two tables are joined badly. Spurious tuples are created when two tables are joined on attributes that are neither primary keys nor foreign keys. Hopes this will help you .
What is the term for a database that contains multiple tables of information that can be joined through common fields?
The term for a database that contains multiple tables of information that can be joined through common fields is a relational database. In relational databases, data is structured into tables, each with rows (records) and columns (fields), and relationships between tables are established through keys.
Why do individual isotopes not appear on the periodic table?
In the periodic table only the chemical elements appear; but tables for isotopes also exist.
What does the term sql outer join mean?
SQL is a special language for making queries to databases. An outer join is a special form of joining two tables within the database, when a SELECT query is made. In the outcome of the query you will find all selected entries from the so called "left table" (the table that was target of the select query) and only those entries from the "right table" (the one that is joined with the other) that fit a specified joining condition.
Who appeared in separate tables?
There were several actors to appear in the movie, Separate Tables. A few people that appeared in the movie were Rita Hayworth, Deborah Kerr, and David Niven.
How are the different relations in a relational database tied together?
There must be at least one common field in the tables that are related. In simple terms you find a value in that field in one table and then find the corresponding value for that field in another. At least one of them will be unique, like in a one to many relationship. One the one table, that value can appear only once in the table. On the many table it can appear more than once. In a one to one relationship, each can only appear once in each table in the relationship. In a many to many relationship, an intermediate table is set up and two other tables are joined to it.
