SQL
Mastering Indexes in MySQL Through Simple Examples
Database indexing is a vital element in the efficient management and operation of modern database systems. They are powerful data structures closely tied to enhancing database performance. I'd like to warmly encourage you to revisit their features by exploring a few simple yet powerful SQL queries examples.
Read all
'%3E%3Cpath fill='%233A5C8D' d='M18.08 2H1.93C.87 2 0 2.85 0 3.9v15.5l.22.02c9.75 0 17.7-7.8 17.86-17.42Z' /%3E%3Cpath fill='%233A5C8D' d='M26.33 2H24.2C24.05 14.97 13.35 25.48.22 25.48L0 25.47v2.61C0 29.14.87 30 1.93 30h24.4c1.06 0 1.94-.86 1.94-1.92V3.91c0-1.05-.88-1.9-1.94-1.9Z' /%3E%3Cpath fill='%23262C49' d='M39.27 31.8c-.74-.2-1.28-.74-1.28-1.48 0-.88.67-1.55 1.56-1.55.23 0 .37.03.64.03 1.7 0 2.92-.63 2.92-3.02V10.52c0-1.04.74-1.81 1.8-1.81 1.01 0 1.76.77 1.76 1.81v15.73c0 3.9-2.34 5.75-5.83 5.75a5.1 5.1 0 0 1-1.57-.2Zm8.01-28.87a2.34 2.34 0 0 1-2.37 2.28 2.32 2.32 0 0 1-2.38-2.28 2.31 2.31 0 0 1 2.38-2.3 2.35 2.35 0 0 1 2.37 2.3Zm9.26 14.31a2.62 2.62 0 0 1-2.66 2.57 2.6 2.6 0 0 1-2.67-2.57 2.6 2.6 0 0 1 2.67-2.56 2.63 2.63 0 0 1 2.66 2.56Zm4.56 6.89V1.81C61.1.77 61.84 0 62.9 0c1.01 0 1.76.77 1.76 1.81v22.32c0 1.05-.75 1.82-1.76 1.82-1.02 0-1.8-.77-1.8-1.82Zm21.93-8.53v8.57a1.7 1.7 0 0 1-1.76 1.78 1.73 1.73 0 0 1-1.76-1.78v-.2a6.88 6.88 0 0 1-5.13 1.98c-3.46 0-5.8-1.92-5.8-4.77 0-2.9 2.37-4.7 6.14-4.7h4.72v-1.09c0-2.25-1.3-3.52-3.57-3.52-1.39 0-2.64.5-3.69 1.54-.44.37-.82.54-1.23.54-.84 0-1.55-.7-1.55-1.48 0-.5.23-.97.7-1.44a8.39 8.39 0 0 1 6.08-2.32c4.31 0 6.85 2.55 6.85 6.89Zm-3.6 3.73v-.3h-4.27c-1.93 0-2.95.7-2.95 2.01 0 1.35 1.15 2.19 2.92 2.19 2.4 0 4.3-1.72 4.3-3.9Zm25.67-1.99c0 4.98-3.46 8.61-8.14 8.61-2.38 0-4.38-.9-5.64-2.42v.6c0 1.08-.74 1.82-1.72 1.82-1.06 0-1.8-.77-1.8-1.82V1.81C87.8.77 88.58 0 89.6 0c1.01 0 1.76.74 1.76 1.81v9.32a7.07 7.07 0 0 1 5.56-2.42c4.72 0 8.18 3.66 8.18 8.63Zm-3.66-.03c0-3.09-2.14-5.38-5.1-5.38-3.01 0-5.02 2.19-5.02 5.41 0 3.2 2.04 5.38 5.03 5.38 2.95 0 5.09-2.28 5.09-5.4Zm6.66 6.09c-.34-.3-.51-.67-.51-1.15 0-.84.71-1.54 1.6-1.54.37 0 .74.13 1.11.47a5.66 5.66 0 0 0 3.9 1.71c1.46 0 2.68-.6 2.68-1.85 0-1.07-.98-1.5-2.34-2.05l-1.7-.7c-2.67-1.11-4.34-2.32-4.34-4.81 0-3.06 2.58-4.77 5.88-4.77 2.13 0 4 .77 5.29 2.01.37.34.54.74.54 1.18a1.5 1.5 0 0 1-1.5 1.51c-.37 0-.67-.16-1.11-.5a5.47 5.47 0 0 0-3.3-1.14c-1.32 0-2.27.5-2.27 1.58 0 .9.68 1.34 2.2 1.95l1.6.63c3.02 1.25 4.55 2.56 4.55 4.98 0 3.32-2.85 5.04-6.17 5.04a8.25 8.25 0 0 1-6.11-2.56Z' /%3E%3C/g%3E%3Cdefs%3E%3CclipPath id='a'%3E%3Cpath fill='%23fff' d='M0 0h120.38v32H0z' /%3E%3C/clipPath%3E%3C/defs%3E%3C/svg%3E)
