The update limit postgres is - Without concurrent write access Materialise a selection in a CTE (Common Table Expressions) and join to it in the FROM clause of the UPDATE. WITH cte AS ( SELECT server_ip -- pk column or any (set of) unique column(s) FROM server_info WHERE status = 'standby' LIMIT 1 -- arbitrary pick…
Answered Sep 29, 2022 · 780 Views Read answer →
On Delete Cascade vs on update cascade mysql These two are actions to be performed, respectively, when the referenced record on the parent table changes its id and when it gets deleted.If you execute: UPDATE parent SET id = -1 WHERE id = 1;And there is at least one record on a child with parent_id = 1, 1) will fail;…
Answered Sep 29, 2022 · 791 Views Read answer →
Answered Sep 29, 2022 · 631 Views Read answer →
To resolve the error - postgresql relation does not exist - You created your tables with double quotes, and now the names are case sensitive. As documented in the manual "Approvals" and Approvals are two different names. Now that you created the table names in a case sensitive manner, you have to use those dreaded…
Answered Sep 29, 2022 · 21.6K Views Read answer →
The answer to your question - Will my isp tell my parents about the sites I visit is - All the sites you visit regardless of what you use software wise (incognito mode etc) need to do a DNS resolution, i.e query the domain name for an IP address. If you are in the UK your ISP will have a record of all this, I cannot…
Answered Sep 27, 2022 · 8.6K Views Read answer →
The answer to your question - how does google authenticator work is - Google Authenticator supports both the HOTP and TOTP algorithms for generating one-time passwords.With HOTP, the server and client share a secret value and a counter, which are used to compute a one time password independently on both sides.…
Answered Sep 27, 2022 · 885 Views Read answer →
ECDHE suites use elliptic curve diffie-hellman key exchange, where DHE suites use normal diffie-hellman. This exchange is signed with RSA, in the same way in both cases. The main advantage of ECDHE is that it is significantly faster than DHE. This blog article talks a bit about the performance of ECDHE vs. DHE in the…
Answered Sep 27, 2022 · 1.3K Views Read answer →
The answer to your question - Is libreoffice safe is - Yes, You are safer with libreoffice. What you mention about telemetry (i.e. a program collecting information on how it is used and sending to the author's server) doesn't happen with libreoffice, but does happen with Microsoft Word and Apple's clone. OpenOffice…
Answered Sep 26, 2022 · 3.1K Views Read answer →
No, you should not disable the wpad.dlink. You are not supposed to run your HOME/Enterprise network under a valid internet subdomain name. Depending on your ISP, your computer should have received from DHCP server parameters giving it a FQDN like mylovelyPC.ISPName.loc. or something like that. If you are running an…
Answered Sep 23, 2022 · 1.1K Views Read answer →
Among Salesforce paas Or saas - choose both Software as a service (or SaaS; pronounced /sæs/) is a way of delivering centrally hosted applications over the Internet—as a service. SaaS applications are sometimes called web-based software, on-demand software, or hosted software. Whatever the name, SaaS applications run…
Answered Sep 22, 2022 · 1.3K Views Read answer →
To schedule class in salesforce, You can take help from the below example : Batch class : global class BatchCreateOpportunity implements Database.batchable{ global Database.QueryLocator start(Database.BatchableContext bc){ String query = 'SELECT id from Account limit 1'; return Database.getQueryLocator(query); }…
Answered Sep 22, 2022 · 748 Views Read answer →
Z=x-mu/sigma means that z has a (multivariate) normal distribution with 0 mean and identity covariance matrix. This essentially means each individual element of the vector z has a standard normal distribution.
Answered May 19, 2022 · 2.3K Views Read answer →
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