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Test IP Address Generator
How to generate IP Addresses? To help you to obtain some IP addresses for testing purpose, FYIcenter.com has designed this online tool. All you need to do is to enter the number of data items you need in the form below, and click the "Generate" button. The generated IP addresses will be presented in...
2019-06-24, 37029👍, 5💬

💬 2019-06-24 9sec: nevermind

💬 2019-06-24 9sec: alert("haha this website is vulnerable to js injection"

💬 2018-12-09 Real: It works

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Test Script for SELECT with CURSOR
Where can I get a SQL script to do I/O performance test with SELECT statement using CURSOR to loop through records? Here is a SQL script to do I/O performance test with SELECT statement using CURSOR to loop through records. It uses the fn_virtualfilestats() function table to calculate the I/O statis...
2019-06-11, 154👍, 0💬

Test Script for INSERT with MEMORY_OPTIMIZED
Where can I get a SQL script to do I/O performance test with INSERT statement using BIGINT with MEMORY_OPTIMIZED? Here is a SQL script to do I/O performance test with INSERT statement using BIGINT with MEMORY_OPTIMIZED. In this case, the table content should be cached in memory as much as possible. ...
2019-06-11, 138👍, 0💬

Test Script for INSERT with PRIMARY KEY
Where can I get a SQL script to do I/O performance test with INSERT statement using BIGINT with PRIMARY KEY? Here is a SQL script to do I/O performance test with INSERT statement using BIGINT with PRIMARY KEY. -- fyi_insert_primary_key.sql -- Copyright (c) FYIcenter.com DECLARE @Count INT SET @Count...
2019-06-11, 131👍, 0💬

I/O Tests on SELECT Statements
Where to find tutorials on I/O tests on SELECT Statements on SQL Server Database? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on I/O tests on SELECT Statements on SQL Server Database. Test Script for SELECT with CURSOR No Reads on SELECT with ...
2019-06-11, 129👍, 0💬

No Reads on SELECT with CURSOR on SQL Server 2016
Why is there no reads recorded by fn_virtualfilestats() on SELECT statements with CURSOR on SQL Server 2016? If you run the SQL script, fyi_select_cursor.sql, presented in the last tutorial with different @Count and @Size on SQL Server 2016, you will see that the fn_virtualfilestats() function view ...
2019-06-11, 128👍, 0💬

Test Script for SELECT with BIGINT
Where can I get a SQL script to do I/O performance test with SELECT statement using BIGINT as the search criteria? Here is a SQL script to do I/O performance test with SELECT statement using BIGINT as the search criteria. It uses the fn_virtualfilestats() function table to calculate the I/O statisti...
2019-06-01, 161👍, 0💬

SELECT with BIGINT on Azure SQL Database
What is the data read performance with the SELECT statement using BIGINT as the search criteria on Azure SQL Database? To see the data read performance with the SELECT statement using BIGINT as the search criteria on Azure SQL Database, you can run the SQL script, fyi_select_bigint.sql, presented in...
2019-06-01, 156👍, 0💬

SELECT with BIGINT on SQL Server 2016
What is the data read performance with the SELECT statement using BIGINT as the search criteria on SQL Server 2016? To see the data read performance with the SELECT statement using BIGINT as the search criteria on SQL Server 2016, you can run the SQL script, fyi_select_bigint.sql, presented in the l...
2019-06-01, 150👍, 0💬

No Reads on SELECT with CURSOR on Azure SQL Database
Why is there no reads recorded by fn_virtualfilestats() on SELECT statements with CURSOR on Azure SQL Database? If you run the SQL script, fyi_select_cursor.sql, presented in the last tutorial with different @Count and @Size on Azure SQL Database, you will see that the fn_virtualfilestats() function...
2019-06-01, 146👍, 0💬

Test Script for SELECT with PRIMARY KEY
Where can I get a SQL script to do I/O performance test with SELECT statement using BIGINT PRIMARY KEY as the search criteria? Here is a SQL script to do I/O performance test with SELECT statement using BIGINT PRIMARY KEY as the search criteria. It uses the fn_virtualfilestats() function table to ca...
2019-06-01, 145👍, 0💬

Test Script for SELECT with MEMORY_OPTIMIZED
Where can I get a SQL script to do I/O performance test with SELECT statement on a MEMORY_OPTIMIZED table? Here is a SQL script to do I/O performance test with SELECT statement using BIGINT PRIMARY KEY on a MEMORY_OPTIMIZED table. -- fyi_select_in_memory.sql -- Copyright (c) FYIcenter.com -- DECLARE...
2019-05-25, 149👍, 0💬

SELECT with MEMORY_OPTIMIZED Table on SQL Server 2016
What is the data read performance with the SELECT statement with a MEMORY_OPTIMIZED table on SQL Server 2016? To see the data read performance with the SELECT statement with a MEMORY_OPTIMIZED table on SQL Server 2016, you can run the SQL script, fyi_select_in_memory.sql, presented in the last tutor...
2019-05-25, 148👍, 0💬

SELECT with PRIMARY KEY on SQL Server 2016
What is the data read performance with the SELECT statement with a PRIMARY KEY field on SQL Server 2016? To see the data read performance with the SELECT statement with a PRIMARY KEY field on SQL Server 2016, you can run the SQL script, fyi_select_in_memory.sql, presented in the last tutorial with d...
2019-05-25, 148👍, 0💬

SELECT Test Summary on SQL Server 2016
What are performance differences of running the SELECT statement with different criteria and table storage options on SQL Server 2016? Here is a summary of performance differences of running the SELECT statement with different criteria and table storage options on SQL Server 2016. Throughput is calc...
2019-05-25, 146👍, 0💬

SELECT with PRIMARY KEY on Azure SQL Database
What is the data read performance with the SELECT statement using PRIMARY KEY as the search criteria on Azure SQL Database? To see the data read performance with the SELECT statement using PRIMARY KEY as the search criteria on Azure SQL Database, you can run the SQL script, fyi_select_primary_key.sq...
2019-05-25, 142👍, 0💬

Test Script for INSERT with BIGINT
Where can I get a SQL script to do I/O performance test with INSERT statement using BIGINT without primary key? Here is a SQL script to do I/O performance test with INSERT statement using BIGINT without primary key. The test result can provide a baseline for INSERT statement with a primary key. -- f...
2019-05-18, 174👍, 0💬

fn_virtualfilestats() Not Useful on SQL Server 2016
Why is fn_virtualfilestats() not giving correct write counter values on SQL Server 2016? If you run the SQL script, fyi_insert_write.sql, presented in the last tutorial with different @Count and @Size on SQL Server 2016, you will see that the fn_virtualfilestats() function view is giving incorrect w...
2019-05-12, 257👍, 0💬

fn_virtualfilestats() Not Useful on Azure SQL
Why is fn_virtualfilestats() not giving correct write counter values on Azure SQL Database? If you run the SQL script, fyi_insert_write.sql, presented in the last tutorial with different @Count and @Size on Azure SQL Database, you will see that the fn_virtualfilestats() function view is giving incor...
2019-05-12, 250👍, 0💬

Use fn_virtualfilestats() for I/O Tests
How to Use fn_virtualfilestats() for I/O Tests? If want to use the fn_virtualfilestats() function table to calculate the I/O statistics while doing performance tests, you need to take a copy of the current counters from the fn_virtualfilestats() function before running a test, run the test, then com...
2019-05-12, 183👍, 0💬

Use allocation_units for I/O Tests
How to Use allocation_units system view for I/O Tests? If want to use the allocation_units system view to calculate the I/O statistics while doing performance tests, you need to take a copy of the current counters from the allocation_units view before running a test, run the test, then compare count...
2019-05-12, 180👍, 0💬

Page Size Varies on Azure SQL Database
What is the data page size on Azure SQL Database? To find out the data page size on Azure SQL Database, we can run the SQL script, fyi_page_insert.sql, presented in the last tutorial with different @Size on Azure SQL Database. The following table shows the summary of the test results. The PARTITION ...
2019-05-12, 178👍, 0💬

Page Size Varies on SQL Server 2016 Database
What is the data page size on SQL Server 2016 Database? To find out the data page size on SQL Server 2016 Database, we can run the SQL script, fyi_page_insert.sql, presented in the last tutorial with different @Size on SQL Server 2016 Database. The following table shows the summary of the test resul...
2019-05-12, 173👍, 0💬

MAC Address Validator
How to valid MAC addresses? In order to help your programming or testing tasks, FYIcenter.com has designed this online tool for you to validate any given MAC address. All you need to do is to enter a MAC address and click the "Validate" button. Validation result will be displayed in the result area....
2019-05-10, 193068👍, 16💬

💬 2019-05-10 FYIcenter.com: @Gokcer, Currently this tool only validates them as hexadecimal digits. We will enhance it to respect IEEE 802 standards.

💬 2019-05-04 Gokcer Gokdal: It says valid for invalid addresses. For example 33:34:45:79:34:54 .https://superuser.com/questions/121 0887/what-exactly-are-the...

💬 2019-03-01 steve: Brilliant 😆😆😆

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