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join column A column used to join one table to another in a join query. One or more join conditions are used in a WHERE clause to specify the relationship(s) between the join columns in the two tables.
join condition One or more conditions specified in the SQL query to determine which rows in the tables will be retrieved. The most common join condition is equality (called an equi-join), as in WHERE EMP.EMPNO = PROJ.EMPNO, but other conditions are valid. See also non-equi-join, and self-join.
Julian date An algorithm for expressing a date in integer form, using the SQL function JDATE. Julian dates allow additional arithmetic functions to be performed on dates.
justification See alignment.
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