What is on delete cascade in SQL? ON DELETE CASCADE constraint is used in MySQL to delete the rows from the child table automatically, when the rows from the parent table are deleted. Is on delete cascade good or bad? Cascading deletes should not cause unexpected loss of data. If a delete requires related records […]
What happens if you split helium? Splitting Helium doesn’t release any energy in the first place: it in fact COSTS energy. Helium is a very stable nucleus. Helium is the product of fusion reactions, not the fuel. In any case, the behavior of Matter and Anti-Matter are basically the same, just with the charge value […]
How do you write date and time in python? Formatting Dates in Python Syntax: time(hour, minute, second, microsecond) Example: import datetime. tm = datetime.time( 2 , 25 , 50 , 13 ) print ™ Output 02:25:50.000013. There are ranges for the time attributes i.e for seconds we have the range between 0 to 59 and […]
Why do my arrows hit left? One of the most common reasons for shots being consistently off target is that you’re shooting arrows with a weak spine. Arrows that are too weak for your bow will cause them to bend too much in flight, making them hit off target. What is the bow sighting aiming […]
Is okoume plywood marine grade? Okoume wood is typically a high-quality product coming in 4′ x 8′ two-sided marine grade panels in thicknesses ranging from ⅛” to 1”. It is very soft and plywood made from Okoume are usually not pressure treated. The core can be made from pine, poplar, or hardwood to give it […]
How much did the Baird televisor cost? The lot is the first TV ever publicly sold. It’s number 192 of the 1,000 made. The picture was not much bigger than a postage stamp and closely resembles an ultrasound scan. It cost £26 ($34) on its release, around £1,550 ($2,037) in today’s money. How did mechanical […]
Is Evening Primrose invasive? While it has a nice yellow flower, as shown in the picture here, common evening primrose (Oenothera biennis) can be an invasive plant. As you can tell from the specific epithet, the plant is a biennial, the leaves forming a basal rosette the first year, then flowering and producing seed the […]
Is Barnstaple rough? According to their findings, Barnstaple is the most dangerous North Devon small town, ranking as the third most dangerous out of all cities, towns and village in Devon. In 2020, Barnstaple had a rate of 82 crimes per 1000 residents. Is Barnstaple worth visiting? It’s not coastal, so it isn’t the most […]
Has homelessness decreased in Canada? The geographic distribution of unique patients experiencing homelessness also changed over time across Ontario. From 2010 to 2017, the proportion of unique patients experiencing homelessness in Toronto decreased from 60% to just over 40% of the total population of this group. Where does Canada rank in homelessness? List Country Homeless […]
What is XML site map generator? What is an XML sitemap? An XML sitemap is a plain text XML file which lists all the most important pages across your website. XML sitemaps can be submitted to Google, Bing, and other major search engines to help them discover, crawl, and index your website more easily and […]
