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New data types defined: DATE, TIME, TIMESTAMP, INTERVAL, BIT string, VARCHAR strings, and NATIONAL CHARACTER strings. Support for additional character sets beyond the base requirement for representing SQL statements. New scalar operations such as string concatenation and substring extraction, date and time mathematics, and conditional statements.
Programs calling a database that accords to the SQL standard receive an indication of the success or failure of the call. This return code - which is called SQLSTATE - consists of 5 bytes.
Files format depends on the ROW_FORMAT table option. The following formats are available: FIXED: Fixed is a format where all data (including variable-length types) have a fixed length. This format is faster to read, and improves corrupted tables repair. If a table contains big variable-length columns (BLOB or TEXT) it cannot use the FIXED format.
When the join-predicate is satisfied by matching non-NULL values, column values for each matched pair of rows of A and B are combined into a result row. The result of the join can be defined as the outcome of first taking the cartesian product (or cross join ) of all rows in the tables (combining every row in table A with every row in table B ...
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Will Howard threw two touchdown passes to freshman Jeremiah Smith and Ohio State routed Tennessee 42-17 on Saturday night in a first-round College Football Playoff game, setting up a New Year's ...
MORE: US Marshals hunt for man suspected of killing 29-year-old woman, burying body in shallow grave “Due to his Santa-antics, Langlais was transported to a local hospital out of precaution and ...
The WHERE clause eliminates all rows from the result set where the comparison predicate does not evaluate to True. The GROUP BY clause projects rows having common values into a smaller set of rows. GROUP BY is often used in conjunction with SQL aggregation functions or to eliminate duplicate rows from a result set.