General MySQL Oracle SQL Server

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Entering 0.001 Second in DATETIME in SQL Server Transact-SQL
Why I Can Not Enter 0.001 Second in DATETIME values in SQL Server Transact-SQL? If you enter milliseconds in data and time values, they will be rounded up to 10/3 millisecond increments, because DATETIME data type uses 4 bytes to store the time of the day. A 4-byte integer can only give an accuracy ... 2017-04-15, 3816🔥, 0💬

Date and Time Functions in MySQL
What Are Date and Time Functions in MySQL? MySQL offers a number of functions for date and time values: ADDDATE(date, INTERVAL expr unit) - Adding days to a date. Same as DATE_ADD(). ADDTIME(time1, time2) - Adding two time values together. CURDATE() - Returning the current date. Same as CURRENT_DATE... 2018-03-13, 3803🔥, 0💬

Conditional Statements and Loops in SQL Server in SQL Server Transact-SQL
Where to find answers to frequently asked questions on Conditional Statements and Loops in SQL Server Transact-SQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Conditional Statements and Loops in SQL Server Transact-SQL. Clear answers are provided... 2017-01-11, 3773🔥, 0💬

sqlservr.exe - Process - SQL Server (SQLEXPRESS) in SQL Server
What is sqlservr.exe - Process - SQL Server (SQLEX?PRESS) in SQL Server? Process sqlservr.exe is the Microsoft SQL Server system service installed as part of the Microsoft SQL Server 2005 Express Edition. mscorsvw.exe process and program file info: CPU usage: 00% Memory usage: 1,316K Launching metho... 2016-12-08, 3757🔥, 0💬

Downloading and Installing SQL Server Sample Scripts in SQL Server
How to download and install SQL Server 2005 Sample Scripts in SQL Server? If you want to learn from sample scripts provided by Microsoft, you should follow this tutorial to download and install them: 1. Go to the SQL Server 2005 Samples and Sample Databases download page . 2. Go to the x86 section i... 2019-11-08, 3739🔥, 2💬

💬 2019-11-08 FYIcenter.com: @Nana, please follow AdventureWorksLT - Downloading and Installing the Sample Database in SQL Server tutorial.

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READ_ONLY/READ_WRITE - Database Update Options in SQL Server
How to set database to be READ_ONLY in SQL Server? Databases in SQL Server have two update options: READ_WRITE - Data objects are allowed to be queried and modified. This is the default. READ_ONLY - Data objects are allowed to be queried, but not allowed to be modified. You can use the "ALTER DATABA... 2016-11-20, 3715🔥, 0💬

Formatting Time Zone in +/-hh:mm Format in SQL Server
How To Format Time Zone in +/-hh:mm Format in SQL Server Transact-SQL? From the previous tutorial, you know how to calculate the time zone value by using GETDATE() and GETUTCDATE() functions. But how can you format that time zone value in a nice looking format like +05:45 or -04:00? Unfortunately, S... 2017-02-08, 3703🔥, 0💬

DDL (Data Definition Language) Statements for Tables? in SQL Server
What are DDL (Data Definition Language) statements for tables in SQL Server? DDL (Data Definition Language) statements are statements to create and manage data objects in the database. The are three primary DDL statements to create and manage tables: CREATE TABLE - Creating a new table. ALTER TABLE ... 2016-11-20, 3693🔥, 0💬

Counting Rows with the COUNT(*) Function in SQL Server
How To Count Rows with the COUNT(*) Function in SQL Server? If you want to count the number of rows, you can use the COUNT(*) function in the SELECT clause. The following tutorial exercise shows you some good examples: SELECT COUNT(*) FROM fyi_links GO 7 SELECT COUNT(*) FROM fyi_links WHERE url LIKE... 2016-10-26, 3688🔥, 0💬

PHP Connections and Query Execution for MySQL
Where to find answers to frequently asked questions on PHP Connections and Query Execution for MySQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on PHP Connections and Query Execution in MySQL. Clear explanations and tutorial exercises are provi... 2017-11-25, 3684🔥, 0💬

Updating Multiple Rows with One UPDATE Statement in SQL Server
How To Update Multiple Rows with One UPDATE Statement in SQL Server? If the WHERE clause in an UPDATE statement matches multiple rows, the SET clause will be applied to all matched rows. This rule allows you to update values on multiple rows in a single UPDATE statement. Here is a good example: SELE... 2016-11-02, 3675🔥, 0💬

INSERT, UPDATE and DELETE Statements in MySQL
Where to find answers to frequently asked questions on INSERT, UPDATE and DELETE Statements in MySQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on INSERT, UPDATE and DELETE Statements in MySQL. Clear answers are provided with tutorial exercises... 2018-01-24, 3667🔥, 0💬

Running Queries with SQL Server Management Studio Express in SQL Server
How to run Queries with SQL Server Management Studio Express in SQL Server? 1. Launch and connect SQL Server Management Studio Express to the local SQL Server 2005 Express. 2. Click on the "New Query" button below the menu line. Enter the following SQL statement in the query window: SELECT 'Welcome ... 2016-12-04, 3647🔥, 0💬

CONVERT() - Converting Character Strings to Numeric Values in SQL Server
How To Convert Character Strings into Numeric Values in SQL Server Transact-SQL? Sometimes you need to convert numeric values enclosed in character strings back to numeric values by using the CONVERT() function. When converting character strings to values with CONVERT(), you need to remember two rul... 2017-03-22, 3635🔥, 0💬

What Is Oracle in Oracle
What Is Oracle in Oracle? Oracle is a company. Oracle is also a database server, which manages data in a very structured way. It allows users to store and retrieve related data in a multiuser environment so that many users can concurrently access the same data. All this is accomplished while deliver... 2020-11-11, 3629🔥, 0💬

Managing Security, Login and User in SQL Server
Where to find answers to frequently asked questions on Managing Security, Login and User in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Managing Security, Login and User in SQL Server. Clear answers are provided with tutorial exerc... 2016-10-20, 3626🔥, 0💬

Drop an Index in Oracle
How To Drop an Index in Oracle? If you don't need an existing index any more, you should delete it with the DROP INDEX statement. Here is an example SQL script: CREATE TABLE student (id NUMBER(5) PRIMARY KEY, first_name VARCHAR(80) NOT NULL, last_name VARCHAR(80) NOT NULL, birth_date DATE NOT NULL, ... 2019-04-22, 3623🔥, 0💬

Getting Year, Month and Day Out of DATETIME Values in SQL Server
How To Get Year, Month and Day Out of DATETIME Values in SQL Server Transact-SQL? You can use DATEPART() to get any part of the DATETIME value. But to get year, month and day, you can use 3 specific functions: YEAR(), MONTH() and DAY(). These functions are equivalent to DATEPART() as: YEAR(date) = D... 2017-02-14, 3575🔥, 0💬

CHARINDEX() and SUBSTRING() - Locating and Taking Substrings in SQL Server
How To Locate and Take Substrings with CHARINDEX() and SUBSTRING() Functions in SQL Server Transact-SQL? Transact-SQL is not a language designed for manipulating strings, but it does have two simple functions to locate and take substrings: CHARINDEX() and SUBSTRING(). The tutorial exercise below ass... 2017-03-07, 3573🔥, 0💬

DATEDIFF() - Calculating DATETIME Value Differences in SQL Server
How To Calculate DATETIME Value Differences Using the DATEDIFF() Function in SQL Server Transact-SQL? If you want to calculate the difference between two date and time values, you can use the DATEDIFF() function in the following format: DATEDIFF(datepart, startdate, enddate) returns INT: "startdate"... 2017-02-20, 3569🔥, 0💬

UPDATE Subquery Returning Multiple Rows in SQL Server
What Happens If the UPDATE Subquery Returns Multiple Rows in SQL Server? If a subquery is used in a UPDATE statement, it must return exactly one row for each row in the update table that matches the WHERE clause. If it returns multiple rows, SQL Server will give you an error message. To test this ou... 2016-11-02, 3555🔥, 0💬

Downloading and Installing SQL Server Management Studio Express in SQL Server
How to download and install Microsoft SQL Server Management Studio Express in SQL Server? Microsoft SQL Server Management Studio Express (SSMSE) is a free, easy-to-use graphical management tool for managing SQL Server 2005 Express Edition and SQL Server 2005 Express Edition with Advanced Services. I... 2016-12-04, 3537🔥, 0💬

CAST() - Converting Numeric Expression Data Types in SQL Server
How To Convert Numeric Expression Data Types using the CAST() Function in SQL Server Transact-SQL? If you want to convert the data type of a numeric expression to a new data type, you can use the CAST(expression AS data_type) function. The tutorial exercise below shows you how to use the CAST() func... 2017-03-27, 3533🔥, 0💬

IF ... ELSE Statement in SQL Server Transact-SQL
How to execute statements under given conditions in SQL Server Transact-SQL? How to use IF ... ELSE statements? You can use IF ... ELSE statements to execute statements under given conditions in Transact-SQL using these syntaxes: IF condition statement_1 IF condition statement_1 ELSE statement_2 IF ... 2017-01-11, 3532🔥, 0💬

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General MySQL Oracle SQL Server