Optimization

Datum is a fast modern database viewer. This has all the features and speed of it s predecessor and is FREE! Quickly view your data and modifying table schema. This app is perfect for anyone who deals with SQLite. Especially those who are just looking to browse or only need to import or export data as…

Find out what normalization is and how your database can benefit from it (or suffer from it). Learn the advantages, disadvantages, and some techniques and guidelines to doing it yourself. In this hour, you learn the process of taking a raw database and breaking it into logical units called tables. This…

replicate-ignore-db applies only to the default database (determined by the USE statement). Because the database was specified explicitly in the statement, the statement has not been replicated. My advice is to change the context with a USE instead of explicitly specify the database in the statement…

Today s widespread use of dual and quad core processors means that even the humblest of modern computers running an Oracle database will contain more than one CPU. Although desktop and laptop computers might have only a single disk device, database server systems typically have database files spread—…

If the serial is on the main table from EACH database, then you can just join the tables together using the fully qualified name: CREATE VIEW vWhatever AS SELECT (whatever you want to select) FROM [Database A].[schema - usually dbo].DSNA_tblMaiin AS a JOIN [Database B].[dbo].DSNB_tblMaiin AS b ON a.Serialnumber…

Open SQL Server Management Studio. In the Connect to Server dialog box, enter the following information: Setting       Suggested value Description  Server type Database engine This value is required. Server name The fully qualified server name The name should be something like this: mynewserver20170313.database.windows.net…

SQL Server (starting with 2008)Azure SQL DatabaseAzure SQL Data Warehouse Parallel Data Warehouse Updates query optimization statistics on a table or indexed view. By default, the query optimizer already updates statistics as necessary to improve the query plan; in some cases you can improve query performance…

Each variety of flowchart shape has its own specific meaning. While you can create a flowchart online using only the most common symbol types, knowing how to make a flowchart using them all can come in handy. We’re here to help. Welcome to Gliffy’s guide to understanding flowchart symbols. Basic Flowchart…

2. Sales by Year This query shows how to get the year part from Shipped_Date column. A subtotal is calculated by a sub-query for each order. The sub-query forms a table and then joined with the Orders table. select distinct date(a.ShippedDate) as ShippedDate, a.OrderID, b.Subtotal, year(a.ShippedDate)…

Using the stock whois (on Fedora) I can easily get information for an IP adress: $ whois SOME_IP % This is the RIPE Database query service. % The objects are in RPSL format. % % The RIPE Database is subject to Terms and Conditions. [..] % Information related to SOME_IP/SOME_AS route: SOME_ROUTE mnt-by:…

Depends on what you mean by lightweight. Easy on Ram? Or lighter db file? Or lighter connector to connect to db? Or fewer files over all? I ll give a comparison of what I know: no of files cumulative size of files db size Firebird 2.5 5 6.82 MB 250 KB SqlServerCe 4 7 2.08 MB 64 KB Sqlite 3.7.11.0 1 0.83…

Design and develop from a single conceptual data model to the different DBMS specific physical models . Reverse engineer existing databases to print graphical overviews. Create sub-diagrams for clarity in complex databases, to group tables related to specific functionality. More on database design Visual…

This topic describes how to restore a backup from a device in SQL Server 2017 by using SQL Server Management Studio or Transact-SQL. In This Topic Permissions If the database being restored does not exist, the user must have CREATE DATABASE permissions to be able to execute RESTORE. If the database exists…

What MobiDB Database Designer can do? It s able to design databases with multiple tables and complex relations, calculated values, export of the filled in database to CSV and PDF for further use in external apps. Synchronize databases on all your devices including Android and Windows. Easily design databases…

This topic describes how to create a database in SQL Server 2017 by using SQL Server Management Studio or Transact-SQL. Requires CREATE DATABASE permission in the master database, or requires CREATE ANY DATABASE, or ALTER ANY DATABASE permission. To maintain control over disk use on an instance of SQL…

The world of Database Management Software (DBMS) is an industry that has turned on its head in the last ten years. A space that was once dominated by the big software conglomerates now is joined by a number of free and open source options. With so many solutions out there, paid and free, it can be an…

SQL is a standard language for accessing and manipulating databases. What is SQL? SQL stands for Structured Query Language SQL lets you access and manipulate databases SQL is an ANSI (American National Standards Institute) standard What Can SQL do? SQL can execute queries against a database SQL can retrieve…

It allows us to state what we want to select, insert, update or delete from our graph data without requiring us to describe exactly how to do it. Nodes Cypher uses ASCII-Art to represent patterns. We surround nodes with parentheses which look like circles, e.g. (node). If we later want to refer to the…

This article provides a brief overview of databases — what they are, why you might want to use one, and what the different parts of a database do. The terminology is geared toward Microsoft Access databases, but the concepts apply to all database products. What is a database? A database is a tool for…

The latest version of Microsoft SQL Server Database Engine Tuning Advisor (DTA) supports two new features: (a) Ability to recommend columnstore indexes in addition to rowstore indexes, and (b) Ability to automatically select a workload to tune from the Query Store. These new features are available when…

We are happy to announce a number of significant improvements to elastic database query in Azure SQL Database. Most notably, elastic database query now supports querying across databases in Azure SQL Database. This makes possible common cross-database querying tasks like selecting from a remote table…