Specifies the column, that should be used to determine if the rows in the table are obsolete or not. The following data types are allowed for the filter column. Date DateTime DateTime2 SmallDateTime DateTimeOffset RETENTION_PERIOD = { INFINITE | number {DAY | DAYS | WEEK | WEEKS | MONTH |...
An optional keyword that indicates the start of the definition of a PRIMARY KEY, NOT NULL, UNIQUE, FOREIGN KEY, or CHECK constraint. constraint_name The name of a constraint. Constraint names must be unique within the schema to which the table belongs. NULL | NOT NULL Determine whether null...
A value of 0 is returned if catalogs are not supported by the data source. To determine whether catalogs are supported, an application calls SQLGetInfo with the SQL_CATALOG_NAME information type. A SQL-92 Full level-conformant driver will always return a bitmask with all of these bits set....
of my choice and not by 1 ... Can I? DENY UPDATE/DELETE/INSERT on specific columns to ALL users Detect Current IDENTITY_INSERT Settings? Determine if #TempTable has rows Determine if the database is in Single User or Multi-User Deterministic GUIDs DIFFERENCE BETWEEN "INSERT INTO" AND ...
Workaround:In case you are using hash indexes, inspect the queries and query plans to determine if the queries could benefit from Index Seek operations on a subset of the index key, or Index Seek operations on inequality predicates. If you need to seek on a subset of the index key, eithe...
IF DATENAME(weekday, GETDATE()) IN (N'Saturday', N'Sunday')SELECT'Weekend'; ELSESELECT'Weekday'; For more examples, seeELSE (IF...ELSE). Examples: Azure Synapse Analytics and Analytics Platform System (PDW) The following example usesIF...ELSEto determine which of two responses to show...
There are plenty of scripts to compute the date of various holidays given the year in SQL Server. Given a date, determine if it is a given holiday or not.
You can then determine if the advice is sound. 25.1.2.3.5 Alternative Plan Analysis While tuning a SQL statement, SQL Tuning Advisor searches real-time and historical performance data for alternative execution plans for the statement. If plans other than the original plan exist, then SQL ...
of the site to determine what the average load on the Web site. The Oracle HTTP Server configuration should be tuned such that the number ofhttpdprocesses can handle the average load on the system. In addition, the configuration parameterMaxClientsin thehttpd.conffile should be able to handle ...
The Query Optimizer is one of the most important components of SQL Server. Use the Query Optimizer to analyze a query and determine the most efficient way to access the required data. The input to the Query Optimizer consists of the query, the database schema (table and i...