1. A computer program product for prioritizing test cases, the computer program product comprising: one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising instructions to: identify one or more data tables within a relational database; identify an exclusivity value for each of the one or more identified data tables, wherein the exclusivity value indicates a percentage of rows persisted by insert/update/delete operations; calculate a table weight for each of the one or more identified data tables, wherein the table weight is calculated by dividing the exclusivity of the table by a number of resources utilized to perform a test suite of the data table; prioritize the one or more identified data tables based on the respective calculated table weights; identify one or more sequences of database statements corresponding to the prioritized data tables, wherein a database statement is a command executed on one of the prioritized data tables; calculate a statement weight for each statement in the one or more identified sequences by dividing a number of occurrences of a statement by a total number of occurrences of all statements in the identified sequences; calculate a sequence weight for each identified sequence by calculating the sum of the statement weights in each identified sequence; prioritize the one or more identified sequences based on the calculated sequence weights; and test the one or more identified sequences according to the prioritization.