tk.mybatis Pagination Control // Set maximum results for query // Append SQL clause directly as shown below // Note SQL keyword order for similar requirements Example queryExample = new Example(Entity.class); queryExample.setOrderByClause("driver_code ASC LIMIT " + maxResults); PostgreSQL...
OBProxy operates as a stateless reverse proxy, ensuring that process interruptions do not compromise data integrity. To guarantee high availability in production environments, a watchdog service continuously monitors proxy health and automatically restarts the executable upon detecting a crash. To i...
Version: KingbaseES V008R006C008B0014 Sys_dump is the logical backup tool for KingbaseES, enabling backup of a single database to various file formats without blocking concurrent user access. Sys_restore is the corresponding tool for restoring data from these backup files. To back up an entire clust...
A replication issue can occur in MySQL when a GRANT operation fails due to mismatched user information between the in-memory privilege cache and the mysql.user table. This can lead to SQL thread stoppage on replicas. Replication Error Scenario When checking replica status with SHOW SLAVE STATUS\G, a...
SQLNET.EXPIRE_TIME enables server-side dead connection detection (DCD) by sending periodic probes to verify cliant/server connections are still alive. When the server cannot reach the client, it raises an error on the connection and the server process exits, allowing PMON to reclaim database resourc...