Database Tools

Physical database design: what a row and an index really cost, which key and column order to use, and how types map between engines.

Connection Pool Calculator Sizes a connection pool from throughput and query time, and warns when it is too big.
Data Type Mapper Maps column types between seven database engines, keeping length and precision.
Index Column Order Advisor Reads your WHERE and ORDER BY clauses and puts the index columns in the order that works.
Index Size Estimator Estimates what each index on a table costs on disk, and how deep its tree gets.
Isolation Level Advisor Names the anomaly you are describing and the lowest isolation level that prevents it.
Primary Key Advisor Reviews the primary key on each table and says what it will cost you.
Row Size Calculator Turns a CREATE TABLE into a byte-by-byte row cost, then into a table size.
Sequence Exhaustion Calculator Says when an auto-increment key runs out, at your insert rate and growth.
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