computer science

SIGMOD

SIGMOD is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand SIGMOD rather than just read about it. In short: SIGMOD is the Association for Computing Machinery's Special Interest Group on Management of Data, which specializes in large-scale data management problems and databases. The annual ACM SIGMOD Conference, which began in 1975, is considered one of the most important in the field, and received an A* ranking over all edition of the CORE Conference Ranking system.

Key takeaways

SIGMOD belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SIGMOD to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SIGMOD from memory before moving on to harder problems.

Reference excerpt

SIGMOD is the Association for Computing Machinery's Special Interest Group on Management of Data, which specializes in large-scale data management problems and databases. The annual ACM SIGMOD Conference, which began in 1975, is considered one of the most important in the field, and received an A* ranking over all edition of the CORE Conference Ranking system. While traditionally this conference had always been held within North America, it took place in Paris in 2004, Beijing in 2007, Athens in 2011, Melbourne in 2015, Amsterdam in 2019, Santiago de Chile in 2024 and Berlin in 2025. The acceptance rate of the ACM SIGMOD Conference, averaged from 1996 to 2012, was 18%, and it was 17% in 2012. Important publications of database systems appear first at SIGMOD, for example, the PostgreSQL database system created by Michael Stonebraker was presented in 1986, for which he received the ACM Turing Award in 2014. In association with SIGACT and SIGAI, SIGMOD also sponsors the annual ACM Symposium on Principles of Database Systems (PODS) conference on the theoretical aspects of database systems. PODS began in 1982, and has been held jointly with the SIGMOD conference since 1991. Each year, the group gives out several awards to contributions to the field of data management. The most important of these is the SIGMOD Edgar F. Codd Innovations Award (named after the computer scientist Edgar F. Codd), which is awarded to "innovative and highly significant contributions of enduring value to the development, understanding, or use of database systems and databases". Additionally, SIGMOD presents a Best Paper Award to recognize the highest quality paper at each conference, and Jim Gray Dissertation Award to the best Ph.D. thesis in data management. Initially, SIGMOD offered one submission cycle per year, a frequency that increased stepwise to four rounds by 2024. Until 2022, papers from accepted submissions were published in subsequent proceedings. From 2023 onwards, the publication model changed to a rolling release similar to a journal.

Symposium on Principles of Database Systems (PODS)

The ACM Symposium on Principles of Database Systems (PODS) is an international research conference on database theory, and has been held yearly since 1982. It is sponsored by three Association for Computing Machinery SIGs, SIGAI, SIGACT, and SIGMOD. Since 1991, PODS has been held jointly with the ACM SIGMOD Conference, a research conference on systems aspects of data management. PODS is regarded as one of the top conferences in the area of database theory and data algorithms. It holds the highest rating of A* in the CORE2021 ranking. The conference typically accepts between 20 and 40 papers each year, with acceptance rates fluctuating between 25% and 35%.

Venues of SIGMOD/PODS conferences

Gallery

See also List of computer science conferences BTW, conference of the GI

References

External links SIGMOD SIGMOD Proceedings in DBLP PODS PODS Proceedings in DBLP

Illustrations

Worked examples

Example 1 — a first encounter with SIGMOD

Start with the simplest possible case. Write down what SIGMOD claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to SIGMOD before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about SIGMOD ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of SIGMOD

In research: SIGMOD appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses SIGMOD in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: SIGMOD is common in secondary-school and first-year university syllabi. It links to neighbouring topics Association for Computing Machinery Special Interest Groups, so understanding it makes those chapters shorter.
In everyday life: Look for SIGMOD outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study SIGMOD in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SIGMOD means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain SIGMOD out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SIGMOD in simple terms?

Why does SIGMOD matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study SIGMOD?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on SIGMOD.