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Get the Query Executed in Laravel 3/4
How can I retrieve the raw executed SQL query in Laravel 3/4 using Laravel Query Builder or Eloquent ORM?
20 Answers
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When and why are database joins expensive?
...x strategy is available to the optimiser.
I used to be smarter than the MSSQL optimiser. That changed two versions ago. Now it generally teaches me. It is, in a very real sense, an expert system, codifying all the wisdom of many very clever people in a domain sufficiently closed that a rule-based s...
How can I temporarily disable a foreign key constraint in MySQL?
Is it possible to temporarily disable constraints in MySQL?
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Why use a READ UNCOMMITTED isolation level?
... Oracle has "snapshot" by default since I know it, probably decades before Sql Server introduced it. I was quite disappointed when starting with SQL Server and I found out that all concurrency problems were solved using "primitive" locking mechanisms. Never saw "Read uncommitted" in Oracle. And the ...
How to remove a column from an existing table?
...n do this by querying system tables or using third party tools such as ApexSQL Search (free) or Red Gate Dependency tracker (premium but more features). There a whole thread on foreign keys here
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Laravel Eloquent: How to get only certain columns from joined tables
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I tried this and it shows an error SQLSTATE[42S22]: Column not found and it's SQL doesn't include the table in the with. The sql that it appears on the error is "SELECT fk_table.column1 FROM main_table".
– Michel Ayres
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How do I get SUM function in MySQL to return '0' if no values are found?
Say I have a simple function in MySQL:
4 Answers
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What is cardinality in MySQL?
What is cardinality in MySQL? Please explain in simple, non-technical language.
8 Answers
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LINQ To Entities does not recognize the method Last. Really?
...n comes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a First(), which is what you did.
EDIT:
Other providers will possibly...
How do write IF ELSE statement in a MySQL query
How do I write an IF ELSE statement in a MySQL query?
5 Answers
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