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JGH
– JGH

2019-06-04 14:28:16 +00:00
Commented Jun 4, 2019 at 14:28
1

It's more a SQL trap to avoid and in the particular case of a LEFT JOIN, the correct writing is in the first case WHERE b.val =2 or b.val IS NULL;, so A.* is populated.

J. Monticolo
– J. Monticolo

2019-06-04 16:03:51 +00:00
Commented Jun 4, 2019 at 16:03

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Correct minor typos or mistakes
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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

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