The combining of multiple tables to answer a query in a relational database system.
A join is a characteristic of a relationship between two database objects. The join type determines which records appear when you run a query to show information from two tables. There are three types: Inner Join, Left Outer Join, and Right Outer Join. The default setting is Inner Join which draws only matching records in both tables.
An operation in a relational database that links the rows in two or more tables by matching values in specified columns.
A type of query which retrieves data from more than one object at a time. A join allows the user to select attributes from multiple objects, then returns the data as if were all stored together in one object.
Join operators compare two or more tables (or views) by specifying a column from each, comparing the values in those columns row by row, and concatenating rows in which the comparison is true.
An operation that provides access to data from two tables at the same time, based on values contained in related columns.
A link between tables that is identified by an association between a field in one table and a field of the same data type in another table.
A "join" is a concept within SQL queries. If you want to draw related data out of two (or more) different tables and you want to link them based on a common field, it is called a join. You can use "inner" or "outer"... read more ... Usefulness: N/A(0 ratings) by BuckyF () Rate It! this definition is ... useful somewhat useful incorrect spam / offensive
A SQL method of combining database tables in order to obtain the desired information. In a join, multiple tables are connected by specifying the relationship between a column in one table and a column in another table.
A relational operation that allows for retrieval of data from two or more tables based on matching column values.
A join is a location in a state machine, activity diagram, or sequence diagram where two or more concurrent threads or states combine into one thread or state.
a set containing all and only the members of two or more given sets; "let C be the union of the sets A and B"
cause to become joined or linked; "join these two parts so that they fit together"
make contact or come together; "The two roads join here"
be or become joined or united or linked; "The two streets connect to become a highway"; "Our paths joined"; "The travelers linked up again at the airport"
a database operation that relates two or more tables by means of values that they share in common
a general-purpose mechanism (almost like a mathematical tool) for data retrieval
a mechanism for selecting which rows from two related tables are included in an SQL statement, based on equality (or some other relationship, such as inequality, greater than, and so on) between the contents of selected columns
a method of creating a result set that combines rows from two or more tables (relations)
a method you can use with databases to define and illustrate relationships between two tables
an access across multiple tables to represent a more complex relationship
an operation that combines two tables to produce a third, subject to a restrictive condition
an operation that retrieves for each row of one table zero or more rows from another table
a process in which two or more tables are combined to form a single table
a query in which you select data from related tables
a query that combines rows from two or more tables, views, or materialized views
a query that cross-references multiple tables in order to obtain more usable data
a query that selects columns from at least two tables
a query which retrieves data from more than one table
a relational database query that combines rows from two or more tables
a relational operation used in a SELECT statement that allows you to retrieve data from two or more tables based on matching column values
a transition with two or more source state s and one target state
a way of selecting columns from two or more tables into the same target list, putting the selections side by side instead of stacking their rows as was done for a UNION
Find records in two tables that have identical values in matching fields and then joining the tables.
A query that selects data from more than one table. The data selected from the different tables is determined by conditions specified within the FROM clause of the statement. These conditions are called join conditions.
To connect two or more separate geographic data sets.
A logical pairing of tables in a database, based on matching data in a specific column(s). Creating joins in Discoverer Administrator is critical for identifying the folders available to the user in Discoverer Plus. When the user selects an item or folder to create a worksheet, only those folders having joins with the selected folder are available. Thus, if a join does not exist between two folders, neither the unselected folder nor its items are available for the worksheet. Joins are derived from matching columns or primary or foreign keys in the database.
A logical combination of data from two or more tables.
The JOIN is a SQL command used to retrieve data from 2 or more database tables with existing relationship based on a common attribute.
In a physical database, the act of retrieving information from two tables based on a matched value in their related same-domain attribute. Example: Join the Department table to the Employee table on the Dept# column.
(RA) Formal definition on which the SQL join is based, the pairwise paste of tuples from the relations being joined. Please see full definition on the page. join.php
(SQL) Operation that links two tables, specified in the FROM clause of a SELECT statement. Please see full definition on the page. join.php
To relate datasheets of information in a database. Two related tables will have a common column (field) that is the key to the relationship. Inner joins (aka equi-joins) bring together rows from two tables whose common field match. Outer joins also include unmatched rows. Left joins include all the rows from the first/left table. Right joins include all the rows from the second/right table. See also relationships.
a query that combines data from 2 or more tables or tables and queries
A query that selects data from more than one table. A join is characterized by multiple tables in the FROM clause. Oracle pairs the rows from these tables using the condition specified in the WHERE clause and returns the resulting rows. This condition is called the join condition and usually compares columns of all the joined tables.
A basic operation in a relational system that links the rows in two or more tables by comparing the values in specified columns.
The operation that takes two relations (sets or tables) and produces one new relation (query result – set or view) by collecting the combined rows and matching the corresponding columns with a stated condition to test between the two.
tail that connects two balloons. Just like a tail, it should get smaller as it gets closer to the speaker. A page with Captions, Loose Lettering, a Title and Credits (click to enlarge).
A SELECT statement that connects two tables. SELECT * FROM emps, jobs WHERE emps.jobcode = jobs.jobc;
In Oracle, a query that selects data from more than one table, and combines the data into a new database or table.
An association between a field in one table or query and a field of the same data type in another table or query. Joins tell the program how data is related. Records that don't match may be included or excluded, depending on the type of join. walqaba View
query that combines columns and data from two or more tables, or two or more columns and data from the same table.
Connect two tables together in a query on a common field. The field is usually a primary key in one table and a foreign key in the second table.
an operation that takes two relations as operands and produces a new relation by concatenating the tuples and matching the corresponding columns when a stated condition holds between the two.
An operation that combines data from two or more files using specified fields. In DB2 UDB for AS/400, a relational operation that allows the program to retrieve data from two or more tables based on matching column values. To become a new member of an entity such as a cluster.
Related Terms: relational database, table, SQL In traditional databases, a "join" is a SQL query that pulls records from multiple tables and connects the records via common fields. For example, a join between the employee table the department table could show the names of each department, and the names of each employee in that department. Full-text engines do not usually do "joins" at search time; if database data of that sort is to be searched then it would be joined at index time, not search time.
The basic relational operator that allows data from more than one table to be combined.
A connection between two tables in a relational database.
An SQL statement used to combine the data contained in two relational database tables based upon a common attribute.
Combing two tabular data sets into a single one based on a common field. Two tables with a common domain combined into a single table. SQL query that retrieves data from two or more sources at once based on matching field values.
IMIS action type indicating that parts of two or more coils have been combined to produce a single unit.
This is an SQL keyword that gets mentioned a lot. It is used to fetch data from more than one table at once, by join ing the tables on fields where they have common data.
The process of combining data from two or more tables using matching columns. Also see Equi Join, Outer Join, Self Join, Natural Join, etc.
Unix-like operating systems that merges the lines of two sorted text files based on the presence of a common field. It is a sort of implementation of the join operator used in relational databases but operating on text files.
A join combines records from two or more tables in a relational database. In the Structured Query Language (SQL), there are three types of joins: inner, outer, and cross. Outer joins are subdivided further into left outer joins, right outer joins, and full outer joins.
In topology, a field of mathematics, the join of two topological spaces A and B, often denoted by A\star B, is defined to be the quotient space
In mathematics, a join on a set is defined either as unique suprema (least upper bounds) with respect to a partial order on the set, provided such suprema exist, or (abstractly) as a commutative and associative binary operation satisfying an idempotency law. In either case, the set together with the join is a join-semilattice. The two definitions yield equivalent results, except that in the partial order approach it may be possible directly to define joins of more general sets of elements.