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SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A

5 Super SEO Blogger Tools

Here are the super free blogger SEO tools that every blogger needs. These tools simplify your effort to write SEO -friendly blog posts. These five free blogger SEO tools make your blog post wonders in google search. And, indexing of your post also faster.

5 Super SEO Blogger Tools

Blogger Tool #1: Headline Analyzer

The best tool is the EMV Headline Analyzer. When you enter the headline, it analyzes and gives you an EMV ranking. When you get '50' or above to that, it appears quickly in Google search.

Blogger Tool #2: Headline Length Checker

The usual headline length is 50 to 60 characters. Beyond that, the headline will get truncated and looks ugly for search engine users. The SERP Snippet Optimization Tool useful to know how it appears in the search results.

Blogger Tool #3: Free Submission to Search Engines

The tool Ping-O-Matic is a free submission tool. After your blog post, you can submit your feed to Ping-O-Matic. It does submit to search engines freely.

Blogger Tool #4: Spell and Grammar Check

Another free tool is Grammarly, which checks your spelling and grammar mistakes. So you can avoid small mistakes.

Blogger Tool #5: Keyword Analyzer

The Wordstream Keyword analyzer is the best tool to get Keywords. When you enter your content text in the search box, you will get a list of words. Those you can use in blog posts, which help your post appear quickly in Google search.


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