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public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
"projects": [ { "domain_id": "65382450e8f64ac0870cd180d14e684b", "is_domain": false, "parent_id": "
源。 涉及到复杂SQL语句时，优先参考已有索引进行设计，通过执行explain，查看执行计划，利用索引，增加更多查询限制条件。 使用新的SELECT、UPDATE、DELETE语句时，都需要通过explain查看执行计划中的索引使用情况，尽量避免extra列出现：Using File
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
status String 参数解释 ： 备份状态。 取值范围： BUILDING：备份中。 COMPLETED：备份完成。 FAILED：备份失败。 AVAILABLE：备份可用。 take_up_time Integer 参数解释 ： 备份花费时间（单位：minutes）。 取值范围：
5秒 1秒 gaussdb_mysql006_conn_count 数据库总连接数 该指标用于统计连接到GaussDB(for MySQL)服务器的总连接数。 ≥0 counts GaussDB(for MySQL)实例节点 1分钟 5秒 1秒 gaussdb_mysql007_conn_active_count
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
Query参数 参数 是否必选 参数类型 描述 version_name 否 String 数据库版本号，目前仅支持兼容MySQL 8.0。 availability_zone_mode 是 String 规格的可用区模式，现在仅支持"single"、"multi"，不区分大小写。 spec_code
public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great
为百万级，当SQL执行慢时其扫描行数为千万级，与业务确认该表短期内并无大量数据插入，因此推断执行慢是因为未走索引或选错索引。且通过EXPLAIN查看该SQL的执行计划确实是全表扫描。 图2 慢日志 在实例上对该表执行SHOW INDEX FROM检查三个字段的基数,。 图3 查看基数
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