https://community.developer.cybersource.com/t5/Integration-and-Testing/Using-Keys-in-Combination-vs-Individually-for-more-Complex/m-p/75932#M47399 <P>Questions:</P><P>- Can it be better to get one key to each column, a combo of columns depending on the combinations required in a question, or a set of columns under one key?</P><P>&nbsp;</P><P>- does with all the above mentioned affect the speed/efficiency of this question, versus only with the keys needed according to the EXPLAIN outputsignal?</P><P>&nbsp;</P><P>- Are there any ways to utilize indexes/keys INCORRECTLY that will interfere with the operation greater than simply not using them?</P><P>&nbsp;</P><P>Thank you!</P><P><A href="https://omegle.com.co/" target="_self">omegle</A> <A href="https://random-talk.com/" target="_self">online chat</A></P> Fri, 23 Apr 2021 06:15:58 GMT jamessmith123 2021-04-23T06:15:58Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Using-Keys-in-Combination-vs-Individually-for-more-Complex/m-p/75932#M47399 <P>Questions:</P><P>- Can it be better to get one key to each column, a combo of columns depending on the combinations required in a question, or a set of columns under one key?</P><P>&nbsp;</P><P>- does with all the above mentioned affect the speed/efficiency of this question, versus only with the keys needed according to the EXPLAIN outputsignal?</P><P>&nbsp;</P><P>- Are there any ways to utilize indexes/keys INCORRECTLY that will interfere with the operation greater than simply not using them?</P><P>&nbsp;</P><P>Thank you!</P><P><A href="https://omegle.com.co/" target="_self">omegle</A> <A href="https://random-talk.com/" target="_self">online chat</A></P> Fri, 23 Apr 2021 06:15:58 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Using-Keys-in-Combination-vs-Individually-for-more-Complex/m-p/75932#M47399 jamessmith123 2021-04-23T06:15:58Z