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2. The standardized and commonly accepted language used for defining, querying and manipulating a relational database.
3. function returns the number of rows in a table satisfying the criteria specified in the WHERE clause. It sets the number of rows or non NULL column values. COUNT() returns 0 if there were no matching rows.
6. The SQL VARP Function is one of the SQL Aggregate Function, which is used to calculate the Statistical Variance for the population of total records (or rows) selected by the SQL SELECT Statement.
7. The GROUP BY statement is often used with aggregate functions (COUNT, MAX, MIN, SUM, AVG) to group the result-set by one or more columns.
9. The basic kind of data that can be stored in a column. The data types that are available in RDM SQL are: char, wchar, varchar, wvarchar, binary, varbinary, boolean, tinyint, smallint, integer, bigint, real, float, double, date, time, timestamp, long varbinary, long varchar, and long wvarchar.
10. is a special marker used in Structured Query Language to indicate that a data value does not exist in the database.
11. returns the statistical standard deviation of all values in an expression
12. returns the minimum value of an expression

1. Graphical User Interface.
2. is one of the SQL Aggregate Function, which is used to calculate the standard Deviation for population of total records (or rows) selected by the SELECT Statement.
4. return the average of the values in an expression ignore all null values
5. A primary key, also called a primary keyword, is a key in a relational database that is unique for each record.
8. returns the maximum value of an expression
11. returns the sum of all the values in an expression