What does the "@" symbol do in SQL? - Stack Overflow
The @CustID means it's a parameter that you will supply a value for later in your code. This is the best way of protecting against SQL injection. Create your query using parameters, rather than …
Should I use != or <> for not equal in T-SQL? - Stack Overflow
Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e.g. in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL Server", they say "As …
sql - Left Outer Join using + sign in Oracle 11g - Stack Overflow
This contradicts what I linked to in my answer, which is an excerpt from Oracle Database 10g SQL (Osborne ORACLE Press Series) 1st edition (February 20, 2004), stating: "In a left outer …
What does the SQL # symbol mean and how is it used?
Jun 28, 2019 · The other answers are correct if you're dealing with SQL Server, and it's clear that you are. But since the question title just says SQL, I should mention that there are some forms …
escaping - Escape Character in SQL Server - Stack Overflow
I want to use quotation with escape character. How can I do to avoid the following error when one has a special character? Unclosed quotation mark after the character ...
SQL asterisk(*) all possible uses - Stack Overflow
Apr 13, 2020 · It is used in sql-server for xml. In the code below, aliasing the subquery as ' [*]' means that COLUMN_NAME and DATA_TYPE xml nodes output on the same level as …
meaning of %%% in sql query? - Stack Overflow
Jun 5, 2015 · 0 In SQL '%' and '_' (underscore sign) are wildcard characters. '%' replaces any number of characters - equivalent to '*' in Linux/Unix and Windows file search. '_' replaces one …
sql - How to insert a string which contains an "&" - Stack Overflow
Sep 30, 2008 · How can I write an insert statement which includes the & character? For example, if I wanted to insert "J&J Construction" into a column in the database. I'm not …
SQL Server tables: what is the difference between @, # and
Feb 8, 2010 · 5 I would focus on the differences between #table and @table. ##table is a global temporary table and for the record in over 10 years of using SQL Server I have yet to come …
sql - How to enter special characters like "&" in oracle database ...
Aug 29, 2016 · INSERT INTO STUDENT(name, class_id) VALUES ('Samantha', 'Java_22 & Oracle_14'); If I try to run this query I am getting a popup and it asks me to enter value for …