What kind of job can you find if you only know SQL?
Now, with the rapid development of the computer industry, many computer majors have not studied their courses well during college, or are only proficient in one or two languages. This has led to many people not knowing what they are doing. What kind of work can be done. Today I will talk to you about what jobs you can find if you only know SQL.
# Those who are good at SQL database can apply for database engineer DBA, ETL development engineer, performance optimizer, storage engineer, data warehouse expert, etc. The interviewer definitely hopes to recruit you to create more value, rather than just someone who only knows a certain kind of job.
During database work, you will also need to communicate frequently with programming developers. If you can understand the relevant programming statements, then you will be at ease at work and very relaxed.
So, as long as you still have the idea of continuing to learn, try to learn as many languages and tools as possible. You can choose one or two of the more popular programming languages (such as Python, C, Java, PHP, etc.) Go and learn more about it, at least to the point where you can answer basic questions when others ask you. If you only want to engage in database-related majors, then you must make full use of database knowledge, and you must keep pace with the times. , I believe that if you do this and have a good interview status, you will definitely be able to get the offer you want.
The following is the experience of a friend who is doing data processing:
"Most of the projects I work on now only use SQL Server, and a few projects use Oracle. I write SQL every day. , maybe a few hundred lines, maybe a few thousand lines. In addition to writing SQL, I also need to do some statement-level optimization and daily maintenance of the database.
Of course, I have learned many languages: C#, VB , VC, and Java, but I have never done any actual projects using these languages. In my current job, I only write SQL statements. When I was looking for a job before, I first looked for VC and also found a job, but later I felt that it was not very good. I didn't go if it suited me, and then I started looking for jobs in SQL. There were still many opportunities, and the salary in SQL was a little higher than the VC job I was looking for before.
I think as long as you learn SQL well, you will definitely be able to find a job. , you will be asked to know this and that during the interview. In fact, it is not the most important. As long as you are good enough at a certain aspect, you do not need to be able to do everything.
In fact, most people who only write SQL are generally Are you writing reports? Our company has a bunch of reports to write. The logic ranges from simple ones with a few fields to complex ones with more than 100 fields. It can improve your level a lot. You may need to use the forum to write a report. There are a lot of skills mentioned in posts, but if you think about it, it is unlikely that you will get a salary increase if you continue to stay, so you really need to learn some programming languages, or develop horizontally like other databases, such as Oracle, which is now recruiting PL/SQL. There are many, or you can develop vertically and start by writing SQL and learn more about optimization, system maintenance, backup and restoration, etc."
Let me summarize. The friend above is very familiar with the SQL language. Among them He has also learned other programming languages. Although he is good in his position, there is not much room for appreciation in the future, so he suggested that he should learn some other languages. Therefore, to put it simply, it will be more difficult if you only know SQL. It is recommended that you try to learn as many languages as possible.
Come on my friend, I hope my article will be helpful to you.
The above is the detailed content of What kind of job can you find if you only know SQL?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.

Data Integration Simplification: AmazonRDSMySQL and Redshift's zero ETL integration Efficient data integration is at the heart of a data-driven organization. Traditional ETL (extract, convert, load) processes are complex and time-consuming, especially when integrating databases (such as AmazonRDSMySQL) with data warehouses (such as Redshift). However, AWS provides zero ETL integration solutions that have completely changed this situation, providing a simplified, near-real-time solution for data migration from RDSMySQL to Redshift. This article will dive into RDSMySQL zero ETL integration with Redshift, explaining how it works and the advantages it brings to data engineers and developers.

MySQL database performance optimization guide In resource-intensive applications, MySQL database plays a crucial role and is responsible for managing massive transactions. However, as the scale of application expands, database performance bottlenecks often become a constraint. This article will explore a series of effective MySQL performance optimization strategies to ensure that your application remains efficient and responsive under high loads. We will combine actual cases to explain in-depth key technologies such as indexing, query optimization, database design and caching. 1. Database architecture design and optimized database architecture is the cornerstone of MySQL performance optimization. Here are some core principles: Selecting the right data type and selecting the smallest data type that meets the needs can not only save storage space, but also improve data processing speed.

To fill in the MySQL username and password: 1. Determine the username and password; 2. Connect to the database; 3. Use the username and password to execute queries and commands.

1. Use the correct index to speed up data retrieval by reducing the amount of data scanned select*frommployeeswherelast_name='smith'; if you look up a column of a table multiple times, create an index for that column. If you or your app needs data from multiple columns according to the criteria, create a composite index 2. Avoid select * only those required columns, if you select all unwanted columns, this will only consume more server memory and cause the server to slow down at high load or frequency times For example, your table contains columns such as created_at and updated_at and timestamps, and then avoid selecting * because they do not require inefficient query se

Detailed explanation of database ACID attributes ACID attributes are a set of rules to ensure the reliability and consistency of database transactions. They define how database systems handle transactions, and ensure data integrity and accuracy even in case of system crashes, power interruptions, or multiple users concurrent access. ACID Attribute Overview Atomicity: A transaction is regarded as an indivisible unit. Any part fails, the entire transaction is rolled back, and the database does not retain any changes. For example, if a bank transfer is deducted from one account but not increased to another, the entire operation is revoked. begintransaction; updateaccountssetbalance=balance-100wh

Copy and paste in MySQL includes the following steps: select the data, copy with Ctrl C (Windows) or Cmd C (Mac); right-click at the target location, select Paste or use Ctrl V (Windows) or Cmd V (Mac); the copied data is inserted into the target location, or replace existing data (depending on whether the data already exists at the target location).

View the MySQL database with the following command: Connect to the server: mysql -u Username -p Password Run SHOW DATABASES; Command to get all existing databases Select database: USE database name; View table: SHOW TABLES; View table structure: DESCRIBE table name; View data: SELECT * FROM table name;
