Fortunately, there are database development tools that can generate correct SQL queries for you, often by dragging and dropping tables and fields from the schema diagram into a query diagram. SQL ...

But the division between SQL and NoSQL is increasingly fuzzy, especially as database developers integrate the technologies together and add bits of one to the other. The genesis of NoSQL ...

As you can see, there is no database to entity mapping in this JPA and SQL example. Hibernate and JPA simply returns the data as structured objects in a generic array. In this example, indexes 1 and 2 ...

In Azure SQL Database you can also set a HISTORY_RETENTION_PERIOD (and should be able to do it in SQL Server 2017) to control how far back in time your history will extend. Converting Existing Table ...

Use the following SQL code as a guide:ALTER TABLE customer_info ADD cc_number VARBINARY(100) null;Click the "Run" symbol -- a green, right-pointing triangle in the Management Studio toolbar -- to ...

A sample hierarchy. A table holding this data could be set up as follows: CREATE TABLE ORG_CHART (MGR_ID SMALLINT, EMP_ID SMALLINT, EMP_NAME CHAR(20)) ; Of course, this is a simple implementation and ...

Perhaps, the most important thing you can do to assure optimal application performance when accessing data in a relational/SQL database is to create the correct indexes for your tables based on the ...