If you're looking ideas on creating different queries, my SQL tutorial includes a few that we didn't cover here. In particular, you should be able to have some fun with SQL Joins when selecting data, and you could always try altering a table. After all, you can restore the DB as ...
regions r WHERE e.department_id = d.department_id AND d.location_id = l.location_id AND l.country_id = c.country_id AND c.region_id = r.region_id AND j.job_id = e.job_id WITH READ ONLY; COMMIT; ALTER SESSION SET NLS_LANGUAGE=American; REM ***insert data into the REGIONS...
// foreach (DatabaseTableInfo... } // if (PathIsDrive...else { // Get the table name, row number and type of path from the // path specified string tableName; int rowNumber; PathType type = GetNamesFromPath(path, out tableName, out...
The inner DISTINCT clause is not necessary for spatial joins where one of the layers contains point data. Therefore, the NO_MERGE hint is not necessary. This is because points contain only one tile in the spatial index. The following example shows a spatial join between polygon (county) and ...
· The schema design is a bit denormalized compared with AdventureWorks. To obtain useful information either requires no joins, or fewer joins compared with AdventureWorks. · The quantity of data is reduced from about 183mb down to 7mb which makes it more practical to download over slow or un...
The QueryTableDataSource can be used to dynamically render a spatial table that doesn't have an associated geodatabase. It can also be used for complex SQL queries, such as those that perform joins to non-spatial tables containing multiple records that match to features in the spatial table....
In theAzure portal, create a Premium (DTU) or Business Critical (vCore) database on a server. Set theSourceto theAdventureWorksLTsample database. For detailed instructions, seeCreate your first database in Azure SQL Database. Connect to the database withSQL Server Management Studio (SSMS). ...
Please start any new threads on our new site at All Forums General SQL Server Forums New to SQL Server Programming help to optimize query (sample data provided)
1 THE HASH OBJECT IN A NUTSHELL The hash object is a dynamic data structure controlled from the DATA step (or the DS2 procedure) environment during the execution time. It consists of the following principal elements: A hash table in memory for data storage and retrieval, organized to ...
YSQL (Distributed SQL API with joins. Compatible with PostgreSQL) YCQL (Flexible-schema API with indexes, transactions and the JSONB data type. Roots in Cassandra QL) YEDIS (Transactional KV API with elasticity and persistence. Compatible with Redis) The workloads here have drivers compatible wit...