What is the difference between "sequel" and "SQL"?
2013年8月31日 · SQL is pronounced "sequel" by many, and there is some history there, beyond just trying to make an acronym out of an initialism. (NASA is an acronym; IBM is an initialism). But in writing, the best and most consistent way to refer to SQL Server or SQL databases, etc. is "SQL" --which takes the article "an" based on the initial letter "S".
sql server - What is an MDF file? - Stack Overflow
SQL Server databases use two files - an MDF file, known as the primary database file, which contains the schema and data, and a LDF file, which contains the logs. See wikipedia. A database may also use secondary database file, which normally uses a .ndf extension.
Convert exponential to number in sql - Stack Overflow
I have a large amount of card tokens (16 digits) uploaded from xml file to sql-server. The problem is I see them as expression, sample below: 3.3733E+15 3.3737E+15 3.3737E+15 3.3737E+15 3.37391E+1...
sql server Get the FULL month name from a date - Stack Overflow
2009年4月1日 · How do I use sql to get the whole month name in sql server? I did't find a way using DATEPART(mm, mydate) or CONVERT(VARCHAR(12), CreatedFor, 107). Basically I need in the format: April 1 2009.
What is the difference between SQL, PL-SQL and T-SQL?
Basically, SQL is a language used to define and manipulate data [DDL and DML]. PL/SQL is a language created by Oracle universe. PL/SQL combine programming procedural instructions and allows the creation of programs that operates directly on database scenario. T-SQL is Microsoft product align SQL patterns, with some peculiarities.
what is the difference between OLE DB and ODBC data sources?
2008年9月19日 · SQL Server Data Access Technologies. Since SQL Server is (1) made by Microsoft, and (2) the Microsoft database platform, both ODBC and OLE DB are a natural fit for it. ODBC. Since all other database platforms had ODBC interfaces, Microsoft obviously had to provide one for SQL Server.
What is an ORM, how does it work, and how should I use one?
An ORM library is a completely ordinary library written in your language of choice that encapsulates the code needed to manipulate the data, so you don't use SQL anymore; you interact directly with an object in the same language you're using. For example, here is a completely imaginary case with a pseudo language:
What is the LDF file in SQL Server? - Stack Overflow
2009年5月5日 · If you have to be able to restore to the exact point in time - use FULL recovery mode. In this case you have to take regular Transaction Log backups. The simplest way to do it is to use a tool like SqlBackupAndFTP (disclosure - I am a developer). The log file will be truncated at this time and would not grow beyond certain limits.
t sql - Split fullname into first and last name - Stack Overflow
This version checks that there is a space in the full name to split on. If there isn't then the first name is set to an empty string and the full name is put into the surname. Also, reverse is employed to split on the last space when there is more than one space
What is DTS/SSIS in SQL Server? - Stack Overflow
2016年9月21日 · • SQL Server Analysis Services(an analytical data engine used in decision support and business analytics) • Etc(example SQL Server Reporting Services, SQL Server Browser,SQL Server Full Text Search) SSDT. SQL Server Data Tools (SSDT) is a modern development tool for building SQL Server relational databases, databases in Azure SQL, …