Detailed breakdown of costs and billable items - ApsaraDB RDS

ApsaraDB RDS charges for three categories of items: instance fees, value-added feature fees, and fees from integrated Alibaba Cloud services.

Total cost formula:

Total cost = instance fees (compute + storage)
           + value-added feature fees
           + integrated service fees

The sections below explain each billable item, its formula, and billing method.

RDS instance fees

Two billing models determine how instance fees are calculated:

Subscription or pay-as-you-go instances: Charged for a fixed instance type (compute) and allocated storage capacity, which you select when you purchase the instance.
Serverless instances: Charged based on actual RCU consumption (compute) and storage used. Both scale automatically.

Instance type

Covers the compute resources of subscription and pay-as-you-go RDS instances, including regular instances, read-only instances, disaster recovery instances, and DuckDB analytic instances.

Billable item code: rds_class (also listed as ClassCode on bills)

Billing formulas:

Edition	Formula
RDS Basic Edition, RDS High-availability Edition	Unit price x Duration
MySQL Cluster Edition, PostgreSQL Cluster Edition	Unit price per node x Number of nodes x Duration
SQL Server Cluster Edition	Primary instance fee + read-only instance fee
Savings plans or resource plans	You can purchase Data Disaster Recovery network plans to offset the fees that are generated for the traffic consumed by cross-region backups (NetworkOutDuplicationSize) of your subscription or pay-as-you-go RDS instance. For more information, see Use network plans.

Billing method: Subscription or pay-as-you-go

Unit prices vary by region, database engine, and specifications. Check the ApsaraDB RDS buy page or your bills for the actual price.

RCU (serverless instances)

Covers the compute resources of serverless RDS instances. Fees are based on actual RCU consumption, not pre-allocated capacity.

Billable item code: rds_serverless_rcu

Billing formulas:

Engine	Formula
MySQL, PostgreSQL	Unit price per RCU (single node) x RCUs used (single node) x Number of nodes x Duration
SQL Server	Unit price per RCU x Total RCUs used x Duration

Billing method: Serverless

When fees apply: Fees start when the instance is created and stop when the instance is suspended.

For RCU unit prices, see Serverless ApsaraDB RDS for MySQL fees, , and .

Storage capacity

Covers the storage used by subscription, pay-as-you-go, and serverless RDS instances (including regular instances, read-only instances, disaster recovery instances, and DuckDB analytic instances).

Billable item code: rds_storage (also listed as Storage on bills)

Billing formulas:

Instance type	Formula
Subscription/pay-as-you-go on RDS Basic Edition or High-availability Edition	Unit price x Storage used x Duration
Subscription/pay-as-you-go on RDS Cluster Edition	Unit price per node x Storage used per node x Number of nodes x Duration
Serverless MySQL, serverless PostgreSQL	Unit price per node x Storage used per node x Number of nodes x Duration
Serverless SQL Server	Unit price x Storage used x Duration

Billing method: Subscription, pay-as-you-go, or serverless

How duration is calculated:

Billing method	Duration
Subscription	Subscription period
Pay-as-you-go, serverless	Billable hours (1-hour billing cycle)

Unit prices vary by region, RDS edition, storage type, and billing method. Check the ApsaraDB RDS console for the actual price.

Value-added feature fees

These features are disabled by default. Fees apply only when you enable them and exceed any applicable free quotas.

Auto scaling

Enabling auto scaling is free. Fees apply only when CPU utilization reaches the threshold and computing resources are scaled up.

Billable item code: cpu_cores_flexible (Elastic Computing Resources, CPU+IOPS) — applies only to instances with local SSDs

Billing formulas:

Storage type	Formula
Local SSDs	Unit price per CPU core x Number of increased CPU cores x Duration
Cloud disks	Charged at the new instance type rate (same rules as configuration changes)

Billing method: Pay-as-you-go

For local SSD unit prices, see Configure auto scaling. For cloud disk instances, the new instance type price matches the ApsaraDB RDS buy page.

I/O burst for premium performance disks

Enabling I/O burst is free. Fees apply only when I/O burst exceeds the free quota.

Billable item code: io_burst

Billing formula:

I/O burst fee = (Total I/O burst of all nodes - Free quota) x Unit price x Duration

Billing method: Pay-as-you-go

For total I/O burst, free quota, and unit prices, see I/O burst for ApsaraDB RDS for MySQL and I/O burst for ApsaraDB RDS for PostgreSQL.

Data archiving for premium performance disks

Enabling data archiving is free. When enabled, data archived to Object Storage Service (OSS) incurs storage fees.

Billable item code: rds_oss_storage (OSS Storage Capacity)

Billing formula:

Data archiving fee = Archived data volume x Unit price x Duration

Billing method: Pay-as-you-go

For ApsaraDB RDS for SQL Server, data archiving is supported for both premium performance disks and ESSDs. The feature must be manually enabled for premium performance disks; it is enabled by default for ESSDs. For unit prices, see Data archiving for MySQL, Data archiving for PostgreSQL, and .

Backup storage

Alibaba Cloud provides a free quota for regular backup storage. Fees apply only to storage that exceeds the free quota.

Billable item code: backup_charged (RDS Basic Backup Fee)

Billing formula:

Backup storage fee = (Total backup storage - Free quota) x Unit price x Duration

Billing method: Pay-as-you-go

Free quota by storage type:

Storage type	Free quota	Scope
Cloud disks	200% of instance storage capacity	Per instance
Local SSDs	50% of instance storage capacity	Per instance

For unit prices, see Backup fees for MySQL, , , and Backup fees for MariaDB. To reduce backup costs, see , , and .

Archived backup storage

Data backups older than 730 days are automatically converted to archived backups and billed separately.

Billable item code: ArchivedBackupCharged (Long-term Backup)

Billing formula:

Archived backup fee = Unit price x Amount of archived backup storage x Duration

Billing method: Pay-as-you-go

For unit prices, see Backup fees for MySQL.

Full restoration (instance cloning)

When you restore data to a new instance using backups from the original instance, you are charged for the new instance's compute and storage.

For details, see Restore MySQL dataNetwork traffic fees, , , and .

Database and table restoration

When you restore specific databases or tables to a new instance, you are charged for the new instance's compute and storage. Restoration to the original instance is free.

For details, see Restore MySQL databases and tables and .

SQL Audit (DAS Enterprise Edition V0)

When you enable SQL Audit, you are charged based on the size of SQL logs generated and the storage duration.

Billable item code: sql_collected (SQL Audit)

Billing formula:

SQL Audit fee = Unit price x SQL log storage used x Duration

Billing method: Pay-as-you-go

SQL Audit (DAS Enterprise Edition V0) is billed under the Relational database product. For the higher-tier SQL Explorer and Audit feature in DAS Enterprise Edition V1, V2, and V3, billing falls under the Database Autonomy Service (DAS) product. For unit prices, see , , and SQL Server SQL Explorer billing.

Performance monitoring

For ApsaraDB RDS for MySQL, the 5-second monitoring frequency incurs a fee. The 60-second and 300-second frequencies are free. Performance monitoring is free for PostgreSQL, SQL Server, and MariaDB.

Billable item code: advanced_monitor

Billing formula:

Performance monitoring fee = Unit price x Duration

Billing method: Pay-as-you-go

For unit prices, see Fees.

Database proxy

General-purpose database proxies are free. Fees apply only when you select Dedicated proxy as the proxy type.

Billable item code: MaxscaleChargedSliceNum (Number of database proxy instance shards)

Billing formula:

Database proxy fee = Unit price x Number of proxies x Duration

Billing method: Pay-as-you-go

For unit prices, see and .

Public endpoint traffic

Inbound and outbound internet traffic through a public endpoint is currently free of charge.

For details on enabling or disabling public endpoints, see MySQL public endpoint, , , and .

Fees from integrated Alibaba Cloud services

When you use the following features, fees are generated under other Alibaba Cloud products — not under ApsaraDB RDS.

Cross-region backup

Cross-region backup incurs two types of fees: backup storage and network traffic.

Billable items:

Engine / storage type	Storage billable item	Traffic billable item	Billing product
MySQL (local SSDs), PostgreSQL, SQL Server	Geo-Redundant Storage (`DdrOssStorageSize`)	Cross-Region Backup Network Traffic (`NetworkOutDuplicationSize`)	Relational database (storage), Database Backup (traffic)
MySQL (standard SSDs)	Database backup storage (`BackupStorageSize`)	Cross-Region Backup Network Traffic (`NetworkOutDuplicationSize`)	Database Backup

Billing formulas:

Cross-region backup storage fee = Unit price x Size of cross-region backup files x Duration
Traffic fee = Unit price x Amount of traffic consumed

Billing method: Pay-as-you-go

Savings plans: A DBS network plan offsets the Cross-Region Backup Network Traffic (NetworkOutDuplicationSize) fees for subscription and pay-as-you-go instances.

For storage pricing, see , , and . For MySQL (standard SSDs) storage pricing, see . For traffic pricing, see Network fees.

Backup storage for deleted instances

After you delete an RDS instance, its backup sets are retained free of charge for seven days. After that, you are charged based on backup size and retention duration.

Billable items:

Engine / storage type	Billable item
MySQL (local SSDs)	Standard storage (`StandardStorageSize`)
MySQL (standard SSDs)	Database backup storage (`BackupStorageSize`)

Billing formula:

Fee = Unit price x Size of backup sets x Duration

Billing method: Pay-as-you-go | Billing product: Database Backup

For unit prices, see Billing.

Download of backup files

Downloading backup files incurs two types of fees: outbound internet traffic and, if you use the advanced download feature, a backup set conversion fee.

Billable items: Outbound traffic over Internet (NetworkOutSize), Traffic consumed for the backup set conversion (BackupAnalyticSize)

Billing formulas:

Backup conversion fee = Unit price x Backup compute data volume
Outbound traffic fee = Unit price x (Traffic consumed - Free quota)

Billing method: Pay-as-you-go | Billing product: Database Backup

Savings plans: A DBS network plan offsets the Outbound traffic over Internet (NetworkOutSize) fees for subscription and pay-as-you-go instances.

For unit prices, see Download backup.

Fast restoration and emergency recovery

These features apply to ApsaraDB RDS for MySQL with local SSDs and are billed under the Database Backup product.

Fast restoration of individual databases and tables

Important

Fast restoration within 5 minutes can no longer be enabled.

Two editions are available:

Free edition: No fees are generated.
Paid edition: Charged based on CDM local disk storage used.

Billable item: CDM local disk storage (CapacitySandboxStorageSize)

Billing formula:

Fee = Unit price x Amount of CDM local disk storage x Duration

Billing method: Pay-as-you-go

Savings plans: A CDM sandbox storage plan offsets CDM local disk storage fees for subscription and pay-as-you-go ApsaraDB RDS for MySQL instances with local SSDs.

For unit prices, see Restore individual databases and tables.

Emergency recovery

Emergency recovery generates two billable items:

Billable item	Code	When charged
CDM local disk storage	`CapacitySandboxStorageSize`	Always, after the sandbox feature is enabled
CDM sandbox instance type	`SandboxDatabaseSpec`	Only when you create a temporary sandbox instance for data restoration

Billing formulas:

CDM local disk storage fee = Unit price x Duration x Amount of CDM local disk storage
CDM sandbox instance type fee = Unit price x Duration

Billing method: Pay-as-you-go

Savings plans: A CDM sandbox storage plan offsets CDM local disk storage fees for subscription and pay-as-you-go ApsaraDB RDS for MySQL instances with local SSDs.

For CDM local disk storage pricing, see . For CDM sandbox instance type pricing, see .

DAS: SQL Explorer and Audit

The SQL Explorer and Audit feature is provided by Database Autonomy Service (DAS) and billed under the DAS product. Billable items and pricing differ by DAS edition.

DAS Enterprise Edition V3

Important

Enterprise Edition V3 breaks down billing by feature, making costs more granular and flexible. After you enable Enterprise Edition V3, log traffic fees are charged by default; all other fees apply only to features you use. Free migration from V1 and V2 to V3 is supported.

How billing works

Billable items and unit prices

Alibaba Cloud public cloud:

Billable item	Billing method	Chinese mainland	China (Hong Kong) and outside China
Log traffic (`DataIngestion`)	Pay-as-you-go	USD 0.04 per GB	USD 0.06 per GB
Log indexing (`RealTimeSearchAnalytics`)	Pay-as-you-go	USD 0.04 per GB	USD 0.06 per GB
SQL Explorer (`InsightAnalysis`)	Pay-as-you-go	USD 0.0134 per GB	USD 0.02 per GB
Hot storage (`SqlInsightHotDataSize`)	Pay-as-you-go	USD 0.00167 per GB-day	USD 0.0025 per GB-day
Cold storage (`SqlInsightColdDataSize`)	Pay-as-you-go	USD 0.0005 per GB-day	USD 0.00075 per GB-day
Cold query (`SqlScanDataSize`)	Pay-as-you-go	USD 0.0025 per GB	USD 0.00375 per GB
Download	Pay-as-you-go	USD 0.067 per GB	USD 0.1 per GB
Security audit (`SecurityAudit`)	Pay-as-you-go	USD 0.08 per GB	USD 0.12 per GB

Storage behavior:

Hot storage: Logs are stored in hot storage after indexing. Hot storage is free for the first day; you are charged from day 2 onward. Logs stay in hot storage for up to seven days, then transfer automatically to cold storage at no charge.
Cold storage: The default storage tier. If you have not enabled hot storage, the first 30 days of cold storage are free. If hot storage is enabled, cold storage fees are waived for the days already covered by the hot storage free period.

Billing examples

Scenario 1: Operations and maintenance (O&M)

Assumptions: 10 GB of write traffic per day, SQL Log Storage set to 30 days, Log Index hot storage set to 7 days.

SQL Log Storage is your total storage duration, which defaults to cold storage. When log indexing is enabled, new logs are first stored in hot storage (7 days in this example). After 7 days, the remaining 23 days of logs move to cold storage.

Feature	Billable item	Daily unit price (Chinese mainland)	Daily usage	Daily cost
SQL log	Log traffic (`DataIngestion`)	USD 0.24 per GB	10 GB	USD 2.4
SQL log	Cold storage (`SqlInsightColdDataSize`)	USD 0.0005 per GB-day	10 GB (day 1), 20 GB (day 2) ... 230 GB (day 23)	USD 0 (free for 30 days)
Log indexing	Log indexing (`RealTimeSearchAnalytics`)	USD 0.24 per GB	10 GB	USD 2.4
Log indexing	Hot storage (`SqlInsightHotDataSize`)	USD 0.01 per GB-day	10 GB (day 1) ... 70 GB (day 7)	10 × (7-1) × 0.01 = 0.6 (first day free)
SQL Explorer	SQL Explorer (`InsightAnalysis`)	USD 0.08 per GB	10 GB	USD 0.8

Scenario 2: Audit and compliance

Assumptions: 10 GB of write traffic per day, SQL Log Storage set to 180 days (required for Chinese mainland compliance regulations).

To meet compliance regulations in China, the cold storage period must be at least 180 days.

Feature	Billable item	Daily unit price (Chinese mainland)	Daily usage	Daily fee
SQL log	Log traffic (`DataIngestion`)	USD 0.24 per GB	10 GB	USD 2.4
SQL log	Cold storage (`SqlInsightColdDataSize`)	USD 0.0005 per GB-day	10 GB (day 1) ... 1,800 GB (day 180)	USD 4.5 (10 x 150 days x 0.003; first 30 days free)
Security audit	Security audit (`SecurityAudit`)	USD 0.48 per GB	10 GB	USD 4.8

Public cloud pricing

Log traffic (DataIngestion)	Pay-as-you-go	0.04 USD/GB	0.06 USD/GB	Default fee. Charged for traffic consumed when collecting, transferring, and writing logs to storage.
Log indexing (RealTimeSearchAnalytics)	Pay-as-you-go	0.04 USD/GB	0.06 USD/GB	Charged after you enable log indexing. Log indexes are stored as hot data; DAS dynamically adjusts and optimizes indexes for rapid retrieval. Log indexes can be stored in hot storage free of charge for one day.
SQL Explorer (InsightAnalysis)	Pay-as-you-go	0.0134 USD/GB	0.02 USD/GB	Charged for automatic data aggregation and analysis based on log volume.
Hot storage (SqlInsightHotDataSize)	Pay-as-you-go	0.00167 USD/GB/day	0.0025 USD/GB/day	Charged based on log volume and storage duration. Logs can be stored in hot storage free of charge for one day after being written. If cold storage is enabled, logs are automatically moved to cold storage after the hot storage period ends. Maximum hot storage duration is 7 days.
Cold storage (SqlInsightColdDataSize)	Pay-as-you-go	0.0005 USD/GB/day	0.00075 USD/GB/day	Default fee. Charged based on log volume and storage duration. If hot storage is disabled, logs go directly to cold storage and are free for 30 days. If hot storage is enabled: new logs go to hot storage first (free on day 1); after the hot storage period, logs move to cold storage free of charge during the remaining free cold storage window (`30 days - hot storage duration`).
Cold query (SqlScanDataSize)	Pay-as-you-go	0.0025 USD/GB	0.00375 USD/GB	Charged for querying logs in cold storage offline based on log volume.
Data export (SqlScanDataSize)	Pay-as-you-go	0.067 USD/GB	0.1 USD/GB	Charged for data exporting and dumping. Currently free of charge.
Security audit (SecurityAudit)	Pay-as-you-go	0.08 USD/GB	0.12 USD/GB	Charged for the security audit feature based on log volume.

Billable item	Billing method	Unit price in the Chinese mainland	Unit price in China (Hong Kong) and regions outside China	Description
Log traffic (DataIngestion)	Pay-as-you-go	USD 0.04 per GB	USD 0.06 per GB	Default fee. You are charged for the traffic consumed for collecting, transferring, and writing logs to storage on a pay-as-you-go basis.
Log indexing (RealTimeSearchAnalytics)		You are charged fees after you enable the log indexing feature. Log indexes are stored as hot data. DAS dynamically adjusts and optimizes indexes to ensure rapid data retrieval. Log indexes can be stored in hot storage free of charge for one day after they are written to hot storage;
You are charged for automatic data aggregation and analysis by using the SQL Explorer feature based on the log volume.
Hot storage (SqlInsightHotDataSize)		You are charged for hot storage based on the log volume and storage duration. Logs can be stored in hot storage for up to seven days. Logs can be stored in hot storage free of charge for one day after they are written to hot storage. If cold storage is enabled, the logs are automatically transferred to cold storage free of charge after the hot storage period expires.
Cold storage (SqlInsightColdDataSize)		Default fee. You are charged for cold storage based on the log volume and storage duration. If hot storage is not enabled, logs are stored only in cold storage, and you are not charged for the first 30 days. If hot storage is enabled: New logs are first stored in hot storage (free on the first day), and you are charged for hot storage during the storage period (`hot storage duration - first day`). After the hot storage period expires, logs are automatically transferred to cold storage for free, and you are not charged during the cold storage period (`30 days - hot storage duration`).
You are charged for querying logs in cold storage offline based on the log volume.
You can export and dump logs free of charge.
Security audit (SecurityAudit)		Charged based on log volume when using the new Security Audit feature.

DAS Enterprise Edition V2

Alibaba Cloud public cloud:

Billable item	Billing method	Chinese mainland, Malaysia (Kuala Lumpur), Indonesia (Jakarta)	China (Hong Kong) and Singapore
Hot storage (`SqlInsightHotDataSize`)	Pay-as-you-go	USD 0.00145 per GB-hour	USD 0.002175 per GB-hour
Cold storage (`SqlInsightColdDataSize`)	Pay-as-you-go	USD 0.00018 per GB-hour	USD 0.00027 per GB-hour
Data query (`SqlScanDataSize`)	Pay-as-you-go	USD 0.029 per GB	USD 0.0435 per GB
Security audit (`SecurityAudit`)	Pay-as-you-go	USD 0.08 per GB	USD 0.12 per GB

Storage behavior: Data from the past seven days is stored in hot storage. Data older than seven days transfers automatically to cold storage. Cold data queries take longer than hot data queries.

Billable item	Billing method	Unit price in the Chinese mainland, Malaysia (Kuala Lumpur), and Indonesia (Jakarta)	Unit price in China (Hong Kong) and Singapore	Description
Hot storage (SqlInsightHotDataSize)	Pay-as-you-go	USD 0.00145 per GB-hour	USD 0.002175 per GB-hour	Data is stored in high-performance storage devices, providing query acceleration and SQL aggregation information capabilities. The SQL Explorer and Audit data generated in the previous seven days is stored in hot storage.
Cold storage (SqlInsightColdDataSize)		USD 0.00018 per GB-hour	USD 0.00027 per GB-hour	Data is stored on low-cost storage devices to reduce usage costs. SQL Explorer and audit data older than seven days is automatically transferred from hot storage to cold storage. The response time of a cold data query is longer than that of a hot data query.
Data query fee (SqlScanDataSize)		USD 0.029 per GB	USD 0.0435 per GB	You are charged for querying data that is stored in cold storage on a pay-as-you-go basis.
Security audit (SecurityAudit)		USD 0.08 per GB	USD 0.12 per GB	Optional. You can enable or disable the feature separately. You are charged for the new version of the security audit feature based on the log volume.

DAS Enterprise Edition V1 and V0

Important

Subscription fees apply only to DAS Enterprise Edition V1. DAS Enterprise Edition V0 has no subscription fee.

Billable item	Billing method	Chinese mainland, Malaysia (KL), Indonesia (Jakarta)	China (Hong Kong) and Singapore
Subscription fee	Subscription	USD 6.2 per instance per month	USD 6.2 per instance per month
SQL Explorer data storage (`sql_storage_used`) — excess over free quota	Pay-as-you-go	USD 0.0013 per GB-hour (free quota: 5 GB)	USD 0.0019 per GB-hour (free quota: 3 GB)
Security audit (`SecurityAudit`)	Pay-as-you-go	USD 0.08 per GB	USD 0.12 per GB

The subscription fee is based on the quota of DAS Enterprise Edition V1 enabled for your account — not the number of instances currently using it. For example, if your quota is 3 and you have enabled DAS Enterprise Edition for 1 instance, the monthly subscription fee is USD 6.2 x 3 = USD 18.6.

Billable items	Billing method	Pricing	Description
Subscription costs	Subscription	USD 6.2 per instance-month	The number of instances billed is the quota specified for DAS Enterprise Edition V1 — the total number of database instances for which you can enable DAS Enterprise Edition V1. For example, if your account's Enterprise Edition V1 quota is 3 and 1 database instance has DAS Enterprise Edition enabled, the monthly subscription fee is `6.2 USD/month x 3 = 18.6 USD/month`. Important Subscription fees only apply to DAS Enterprise Edition V1.
Storage fees for SQL Explorer (sql_storage_used)	Pay-as-you-go	Chinese mainland, Malaysia (Kuala Lumpur), and Indonesia (Jakarta): Free quota: 5 GB. Unit price for excess storage: USD 0.0013 per GB-hour. Important Free storage applies only to DAS Enterprise Edition V1.	Hong Kong (China) and Singapore: Free quota: 3 GB. Unit price for excess storage: USD 0.0019 per GB-hour. Important Free storage applies only to DAS Enterprise Edition V1.
Security audit (SecurityAudit)	Pay-as-you-go	Chinese mainland: USD 0.08 per GB. Hong Kong (China) and regions outside China: USD 0.12 per GB.	Optional. Charged for the security audit feature based on log volume.

DAS Economy Edition

Plan	Pricing	Instance limit
Basic	USD 15 per month	Up to 10 database instances
Medium	USD 37.5 per month	Up to 50 database instances
Advanced	USD 75 per month	No limit

Billing method: Subscription

Billable items	Billing method	Pricing	Description
Basic plan	Subscription	USD 7.5714 per month	Up to 10 database instances.
Medium plan	Subscription	USD 21.4286 per month	Up to 50 database instances.
Advanced plan	Subscription	USD 42.8571 per month	Unlimited database instances.

DAS Basic Edition

DAS Basic Edition is free.

DAS Security Center

Billable item	Billing object	Tier	Pricing
Sensitive data detection (`DCG_Amount`)	Number of tables scanned (Z)	0 <= Z <= 50,000	USD 80 per month
		60,000 <= Z <= 100,000	USD 60 per month
		110,000 <= Z <= 500,000	USD 40 per month
		Z >= 5,100,000	USD 20 per month
Column encryption (`CLE_Amount`)	Number of columns encrypted (Y)	Y = 5	USD 498 per month
		Y = 10	USD 598 per month
		Y = 15	USD 699 per month
		Y = 20	USD 798 per month
		Y = 25	USD 898 per month
		Y = 30	USD 996 per month
		Y = 35	USD 1,092 per month
		Y = 40	USD 1,198 per month
		Y = 45	USD 1,287 per month
		Y = 50	USD 1,398 per month
		50 < Y <= 100	USD 25 per month
		100 < Y <= 200	USD 20 per month
		200 < Y <= 300	USD 15 per month
		300 < Y <= 400	USD 12 per month
		400 < Y <= 500	USD 11 per month
		500 < Y <= 600	USD 10 per month
		600 < Y <= 700	USD 9 per month
		700 < Y <= 800	USD 8 per month
		800 < Y <= 900	USD 7 per month
		900 < Y <= 1,000	USD 6 per month
		Y > 1,000	USD 5 per month

Free quotas:

Sensitive data detection: the first 100 tables per month are free. Unused quotas do not carry over to the next month. Each table scanned in a detection job consumes 1 quota.
Column encryption: 1 quota is consumed when a column is encrypted; the quota is recovered when encryption is canceled.