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5 SQL Concepts You Need To Know Before Your Next Data Science Or Data Engineering Interview
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Helio posted on 2026/05/27Getting ready for a data science or data engineering interview? This video breaks down five essential SQL concepts, like self-joins and running totals, that interviewers frequently test. You'll gain practical insights and learn key phrases to confidently tackle those tricky SQL questions!
Video vocabulary
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US /spɪˈsɪfɪk/
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UK /spəˈsɪfɪk/
- Adjective
- Precise; particular; just about that thing
- Concerning one particular thing or kind of thing
A2
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US /sɔrt/
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UK /sɔ:t/
- Transitive Verb
- To organize things by putting them into groups
- To deal with things in an organized way
- Noun
- Group or class of similar things or people
A1TOEIC
More essentially
US /ɪˈsenʃəli/
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UK /ɪˈsenʃəli/
- Adverb
- Basically; (said when stating the basic facts)
- Used to emphasize the basic truth or fact of a situation.
A2
More figure
US /ˈfɪɡjɚ/
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UK /ˈfiɡə/
- Verb (Transitive/Intransitive)
- To appear in a game, play or event
- To calculate how much something will cost
- Noun
- Your body shape
- Numbers in a calculation
A1TOEIC
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