Query generators producing sequences of SQL statements are embedded in many applications. As the response time of such sequences is often far from optimal, their optimization is an important issue. CGO (Coarse-Grained Optimization) is an appropriate optimization approach that applies rewrite rules to...
SQL Statements: ALTER CLUSTER to ALTER SEQUENCE, 18 of 18ALTER SEQUENCE Purpose Use the ALTER SEQUENCE statement to change the increment, minimum and maximum values, cached numbers, and behavior of an existing sequence. This statement affects only future sequence numbers. See Also: CREATE ...
SQL*Plus User's Guide and Reference for information on the SQL*Plus RECOVER command AUTOMATIC Specify AUTOMATIC if you want Oracle to automatically generate the name of the next archived redo log file needed to continue the recovery operation. If the LOG_ARCHIVE_DEST_n parameters are defined, ...
This statement can be embedded in an application program or issued through the use of dynamic SQL statements. It is an executable statement that can be dynamically prepared only if DYNAMICRULES run behavior is in effect for the package (SQLSTATE 42509). Authorization The privileges held by the ...
Transact-SQL statements that useSELECT *will receive the new column as the last column instead of the first column. If this is not acceptable, then you must create an entirely new table, move the data to it, and then recreate the permissions on the new table. ...
To improve performance, SQL Server pre-allocates the number of sequence numbers specified by theCACHEargument. For an example, a new sequence is created with a starting value of 1 and a cache size of 15. When the first value is needed, values 1 through 15 are made available from memory....
create tdsql_sequence test.s2 start with 12 tdsql_minvalue 10 maxvalue 50000 tdsql_increment by 1 tdsql_cycle The above SQL statements include six parameters: start value, minimum value, maximum value, increment, buffer size, and whether to cycle, all of which should be positive integers....
SQL CREATESEQUENCETest.CountBy1STARTWITH1INCREMENTBY1; GO B. 建立以 1 遞減的順序 下列範例會從 0 開始,並且每次使用時遞減一。 SQL CREATESEQUENCETest.CountByNeg1STARTWITH0INCREMENTBY-1; GO C. 建立以 5 遞增的順序 下列範例會建立每次使用時遞增 5 的順序。
This stored procedure executes a series of DMX statements that return the complete set of profiles in the model. However, to use this stored procedure you must know the address of the model. CALL System.Microsoft.AnalysisServices.System.DataMining.Clustering.GetClusterProfiles('Sequence Clustering',...
SQL CREATESEQUENCETest.CountBy1STARTWITH1INCREMENTBY1; GO B. 创建按 1 递减的序列 以下示例从 0 开始,每次使用时递减 1。 SQL CREATESEQUENCETest.CountByNeg1STARTWITH0INCREMENTBY-1; GO C. 创建按 5 递增的序列 以下示例创建一个每次使用时增加 5 的序列。