How to truncate the text returned for a column in a MySQL query
Quoting mysql.com: For all forms of SUBSTRING(), the position of the first character in the string from which the substring is to be extracted is reckoned as 1.
sql
Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine
I found on the sqlite documentation (https://www.sqlite.org/lang_datefunc.html) this text: Compute the date and time given a unix timestamp 1092941466, and compensate for your local timezone. That didn’t look like it fit my needs, so I tried changing the “datetime” function around a bit, and wound up with this: That seems to work – is that … Read more
SQL- Ignore case while searching for a string
Use something like this – or
What does * mean in sql?
I am providing you answer by seperating each part of code. SELECT == It orders the computer to include or select each content from the database name(table ) . (*) == means all {till here code means include all from the database.} FROM == It refers from where we have to select the data. example_table … Read more
Postgresql column reference “id” is ambiguous
You need the table name/alias in the SELECT part (maybe (vg.id, name)) :
What is the difference between Views and Materialized Views in Oracle?
Materialized views are disk based and are updated periodically based upon the query definition. Views are virtual only and run the query definition each time they are accessed.
How to select the last record of a table in SQL?
Without any further information, which Database etc the best we can do is something like Sql Server MySql
Difference between EXISTS and IN in SQL?
The exists keyword can be used in that way, but really it’s intended as a way to avoid counting: This is most useful where you have if conditional statements, as exists can be a lot quicker than count. The in is best used where you have a static list to pass: When you have a table in an in statement it makes more sense to use … Read more
How do I count unique items in field in Access query?
Try this Read this for more info.