She later appears as a regular fighter in The King of Fighters series; she is perhaps best known for changing her outfit and hair style for virtually every main installment. Athena was a highly anticipated character for the King of Fighters lineup and developers relate that they are constantly working to keep her in the series. Throughout the years, her sailor uniform outfit was a frequent request from Japanese fans that was denied due to the belief that it wouldn't translate well with the overseas audience this kept up until recent installments.

Her official nickname is The Psychic-Powered Idol. In the Neo Geo Freak's Volume 8 character poll, she was voted as the eighth favourite character with a total of 1, votes.

Athena is a modern day high school girl in Japan. She teamed up with her friend, Sie Kensouto fight in the name of justice. In Psycho Soldiersshe was one of the "heroes of light" who defended the world from the Shiguma forces.

Her psychic powers are believed to be transmigrated to her rather than inherited by her family. As such, she is sometimes referred to as the resurrected Athena who is gifted with esper-like powers. She has spent most of her life secluded in China's mountains training.

Her team participates in the tournaments as a form of training and to save the populace from an apparent future threat. Other times, they enter to disrupt any evil forces they may feel at the time. In the tournament, Chin seemed perturbed by the energy he sensed and didn't want his students to be involved with it. However, they surprise him by redoubling their enthusiasm for the event and they enter.

Their success in the tournament is shown in the following year where they receive a mountain of adoring fan letters. Athena in particular had a boost in popularity and stardom.

However, Chin rejects their proposal to enter King of Fighters since he doesn't want his students to forget the purpose of their training. Determined to change his mind, Athena presents him with an inspirational letter from Kaoru Watabe. The contents in the letter helps her argument that their publicity moves people to do better things, which is essentially another way of saving people.

Convinced that his students are improving, he allows them to enter once more. By this time in the series, Athena becomes a famous pop-star who is rising the charts with her concerts. She welcomes the new recruit, Baowarmly and hopes that he does his best.

Additionally, she grows concerned for Kensou once he lost his powers though she remains optimistic that they might return during the tournament on a spur-of-the-moment notice.

athena coalesce

During that time, Athena was caught underneath the falling rubble and passed out. Though he has no memory of it, Kensou saved her with a formidable latent energy. Ever since then, Bao suffered from a mysterious fatigue and illness. This same energy is later revealed to be the "Dragon's Spirit".

Though she has her doubts with her master's methods, she wearily agrees to join the tournaments in this saga to treat Bao and Kensou's predicament. In the team's story in The King of Fighters she, Chin and Kaoru Watabe witness Bao's near heroic sacrifice as he takes a the NESTS satellite's energy beam to protect them, and how this leads to Kensou recovering his powers when he absorbs the rest of the energy. Not wanting to miss out on her annual fix of tournament competition, Athena joined forces with Hinako Shijou and Malin to form the High School Girls team, a strange but rather successful partnership.

Athena is very outgoing, polite, and friendly.

athena coalesce

Athena often chides Kensou for slacking off in his training. She either is well aware of his crush on her, but usually chooses to ignore his romantic advances since he seems to embarrass her, or she is oblivious about his romantic interest in her. Her stance was loosely based on Liuhebafa. While Athena is a capable hand-to-hand fighter, she mostly relies on her psychic powers to fight.

Athena is not feared for her martial arts training, but she is respected and can somewhat hold her own against some fighters. Athena's fighting style revolves mostly around simple yet effective strikes, and around speed and acrobacies, rather than strength. She uses her psychic powers to full effectiveness when in combat, improving her martial capabilities, controlling the battlefield and getting the enemy off guard with several surprise tactics.

Sign In Don't have an account?Comment 0. They can transform a value into another value. Which one should you use? I'll explain the pros and cons of each in this article. Many expressions expr1expr2 can be used. The expr1 is checked if it is NULL. If it is, then expr2 is returned. If it is not, then expr1 is returned. It's a simple function, and it's helpful as it can take a lot of parameters, and it's easier to write. It's better than using an NVL function as it takes more parameters, which may be more useful for your code.

The downside is that it only transforms NULL values. The expression is the value to compare.

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Many combinations of search and result can be supplied. Search is compared against the expression, and if it is true, then result is returned. It can handle advanced logic, but can get hard to read as the function gets longer. The expression is used to compare against. Many conditions and results can be specified, and if a condition matches the expressionthen the result is returned. The ELSE keyword specifies what happens if no condition is met. It's also easier to read.

More keywords within the statement allow you to break up the logic, rather than using a series of parameters in a single function. They also handle NULL values differently.

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I would suggest using CASE in almost every case. I hope this article has given you more clarity on these three functions and which one to use. Over a million developers have joined DZone. Let's be friends:.

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athena coalesce

Database Partner Resources.It is a shortcut for the CASE expression. To illustrate what I mean by that, let me show you an example with two tables t1 and t2. Here is the query to create the two tables.

These two tables has exactly same schemas. They both have 5 rows and 4 of 5 are identical. These two columns have same data type, it is possible to JOIN them with each other. From the above table information, we can easily know that two records should be returned. This is exactly what the result shown. However, it only returns one record as shown below. Then use the intermediate column as the JOIN condition. The detailed query are showed as below. You are commenting using your WordPress.

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Notify me of new comments via email. Notify me of new posts via email. Menu Skip to content Home About Contact. Search for:. Table t1 Table t2 These two tables has exactly same schemas. Like this: Like Loading Leave a Reply Cancel reply Enter your comment here Fill in your details below or click an icon to log in:.Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run. Athena is easy to use.

Most results are delivered within seconds. This makes it easy for anyone with SQL skills to quickly analyze large-scale datasets. Athena is out-of-the-box integrated with AWS Glue Data Catalog, allowing you to create a unified metadata repository across various services, crawl data sources to discover schemas and populate your Catalog with new and modified table and partition definitions, and maintain schema versioning.

Run federated queries against relational databases, data warehouses, object stores, and non-relational data stores. Federated SQL queries allow you to query the data in-place from wherever it resides. Athena federated query also introduces a new Query Federation SDK that allows you to write your own data source connectors to query custom data stores. Write custom scalar functions and invoke them in your SQL queries. You can invoke multiple UDFs in the same query.

While Athena provides built-in functionsUDFs enables you to perform custom processing such as compressing and decompressing data, redacting sensitive data, or applying customized decryption. Invoke machine learning models for inference directly from your SQL queries. Customers can use more than a dozen built-in machine learning algorithms provided by Amazon SageMaker, train their own models, or find and subscribe to model packages from the AWS Marketplace and deploy on Amazon SageMaker Hosting Services.

There is no additional setup required. The ability to use machine learning models in SQL queries makes complex tasks such anomaly detection, customer cohort analysis, and sales predictions as simple as invoking a function in a SQL query. Upsolver is a data lake ETL service. It provides a visual, SQL-based interface for creating real-time tables in Athena with little engineering overhead and according to performance best practices. Amazon Athena Start querying data instantly.

Get results in seconds. Pay only for the queries you run. Get started with Amazon Athena. Athena is serverless. You can quickly query your data without having to setup and manage any servers or data warehouses.

Just point to your data in Amazon S3, define the schema, and start querying using the built-in query editor. Amazon Athena allows you to tap into all your data in S3 without the need to set up complex processes to extract, transform, and load the data ETL. Pay per query Only pay for data scanned.

With Amazon Athena, you pay only for the queries that you run. Athena queries data directly in Amazon S3.

How to Build Serverless Data Lake Analytics with Amazon Athena - AWS Online Tech Talks

There are no additional storage charges beyond S3. Athena is ideal for quick, ad-hoc querying but it can also handle complex analysis, including large joins, window functions, and arrays. Amazon Athena is highly available; and executes queries using compute resources across multiple facilities and multiple devices in each facility.Executive Director. Design Assistant. Without my Heavenly Father you would not be seeing this website.

My two precious daughters who are the shine to my smile and keep me going and are the reason I desired Entrepreneurship. Nothings better! I love to build lasting relationships. This is why I love my team. They stretch me, strengthen me, encourage me and challenge me. This wish drove me to create Decades of Love. A blog celebrating marriage relationships that have shared love for over 10 years.

Love is worth celebrating and recognizing! Around my house, jewelry and keychains you will find symbols of my love. My Heart loves nature wood and metal combinations and the tree of life. We compare our relationship to the story of Tortoise and the Hare. Sentimental things bring me joy when not so good days arise.

My other obsessions are spray painting makes anything look new and pearls. When we meet you will see me with pearls and you will see pearl curtains in the office.

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My team and I also all wear pearls on your wedding day! Words hurt and I take them to heart. I love to just be caught up in a conversations about God, crafts, relationships, my beautiful daughters and of course fashion. Simplistic and sentimental.

These two words explain me:. The Lakers were on the tv they won the championship 2 weeks ago at this time and I asked the bartender to please change the channel to anything else. Then I heard a voice say to me "Oh the Lakers aren't that bad". Who knew that line would turn into a beautiful love story. Published Weddings and Events. I praise him everyday for giving me the strength to step out on faith and follow my dreams. My 2 boys, 1 girl, niece and 2 god kids fully support me and they challenge me to pursue my passion.

I love being apart of others monumental moments. I love bakery cakes, specialty cupcakes, kitkats and amaretto and rum ice cream from Marble Slab. I also have OCD and believe in organization and being totally prepared ahead of time. To create a pathway and legacy for my family.String manipulation is a process to generate another form of existing data in a way the business uses or displayed as results in the reports. SQL server also has some built-in character functions that also allow us to manipulate and transform data.

At the same time, it is important to examine dataset, explore data values and encode or decode the values, as necessary, to generate meaningful data.

It is important to know how to navigate through missing values in our datasets, understanding impact on calculations, queries, reports and data-set preparation and coming up with techniques to avoid letting Null values ruin our resultsets.

As defined by Wikipedia. Introduced by the creator of the relational database model, E. SQL null is a state, not a value. This usage is quite different from most programming languages, where null value of a reference means it is not pointing to any object. During the expression evaluation process the NULL values are replaced with the user-defined value. The SQL Coalesce function evaluates the arguments in order and always returns first non-null value from the defined argument list.

And we can see that we encounter a NULL value while processing string concatenation operation. The result is not a combination of the firstname, null, and last name.

It allows handling the behavior of the NULL value. We now see that the full name gets displayed with a space in the middle, for NULL values. In this way, it is possible to efficiently customize the column values.

In some cases, you may need to assign the concatenated static values to a variable. In this case, the values of the city column are parsed using the Coalesce SQL function and concatenated within a single quote to prepare a string of values.

The output is then further manipulated to remove the last character to fetch a valid string of input value. A user-defined function is created to return a string specific to the provided input and then the output is grouped using a grouping clause. In the following example, we are going to find the emergency employee contacts.

The SQL Coalesce function is used to select the columns homephone, workphone, and cellphone. In general, we may need to use the expression in the tables. In tables, it is required to compute the values that are often calculated using several existing columns and with few scalar values of the table. Also, these columns are dependent on one or more other columns. We also discussed various use-cases of the SQL Coalesce function.

It is also possible to optimize output by creating a computed column. Feel free ask any questions in the comments below. FROM dbo. NULL.

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Prashanth Jayaram. View all posts by Prashanth Jayaram. Latest posts by Prashanth Jayaram see all.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I've got a DB in Athena, imagine there is a countryregion and data column.

Learn more. Can I coalesce a column in presto DB to get a list of all possible pairs when some might be null?

Ask Question. Asked 2 months ago. Active 2 months ago. Viewed 67 times. Any idea if this is possible? McB McB 1 1 gold badge 13 13 silver badges 28 28 bronze badges. Active Oldest Votes.

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