Connecting a VCL Application to SQL Server Using FireDAC in RAD Studio
Learn how to link a VCL form to SQL Server with FireDAC, run a parameterized query, and show results in a grid while handling errors and cleaning up resources.
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MySQL and MSSQL migration safety when Knex cannot wrap DDL in a transaction
Goal: ensure safe recovery from a failed Knex migrate:latest on MySQL or MSSQL where DDL cannot be rolled back automatically. Constraints: Knex only records a migration after its up promise resolves, so a mid‑file failure leaves the schema ahead of the knex_migrations entry and does not invoke the down function; recovery therefore depends on external backups
knexjs
mysql