What This Category of Data Looks Like
Data for advertising marketing yield rates and daily market reports primarily comes from advertising placement management systems, media monitoring APIs, and third-party ad effect monitoring tools. Two update cadences are used: Full aggregated data from the previous calendar day syncs at a fixed early morning time. Real-time incremental placement data refreshes every 15 minutes. Each data entry uses a structured table format, with fields including placement unit identifier, placement channel category, impressions, clicks, conversions, cumulative placement cost, and cumulative ad revenue. Units for impressions, clicks, and conversions are counts. Units for cost and revenue are yuan.
Constraints Imposed on Database and Operations
Multi-source data access requires the database to support federated queries or multi-table joins. This integrates placement, monitoring, and revenue data from different platforms. Coexisting fixed-time full sync and high-frequency incremental sync needs differentiated scheduled task scheduling logic. This avoids resource conflicts during peak business hours. Amount fields must use high-precision numeric types. This prevents calculation errors for placement costs and ad revenue. Date-partitioned table structures improve historical data archiving and query efficiency. This adapts to the large volume of daily report data added each day. A data reconciliation mechanism must also be established. This validates consistency across multi-source data and avoids discrepancies between placement data and revenue data.
How to Set Configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
DB_SYNC_FULL_INTERVAL | Once daily, 3:00 AM | Matches the T+1 update cadence of advertising marketing daily reports, avoids occupying server resources during business peak hours |
DB_SYNC_INCREMENT_INTERVAL | 15 minutes | Balances real-time data freshness and server load, adapts to the refresh needs of incremental data |
DB_DECIMAL_PRECISION | (18,6) | Meets the high-precision calculation requirements for advertising placement amounts, prevents reconciliation errors caused by rounding |
DB_TABLE_PARTITION_TYPE | RANGE PARTITION BY (sync_date) | Partitions by sync date, improves efficiency of historical data archiving and single-day data queries |
DB_CONNECTION_WHITELIST | Deployed node IPs, egress IPs of third-party data source APIs | Restricts unauthorized access, ensures data security during multi-source access links |
DB_BATCH_INSERT_SIZE | 1000 entries per batch | Balances single-write performance and memory usage, avoids database connection timeouts |
The parameter values provided on this page are standard recommended starting points for configuration. Actual values are affected by data format, data volume, and business rules. Specific issues require targeted analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Errors
- Scenario: When executing a MySQL database connection plugin, submitting both INSERT and SELECT statements returns the error
1064 - You have an error in your SQL syntax. Cause: Some MySQL database connection plugins disable multi-statement execution by default. TheallowMultiQueriesparameter must be enabled separately to support multi-row queries. - Scenario: Connecting to the database from a local development environment triggers the error
1045 - Access denied for user 'xxx'@'xxx.xxx.xxx.xxx'. Cause: The egress IP of the development environment has not been added to the database connection whitelist, resulting in blocked access. - Scenario: After restoring project backup files, the backend knowledge base and agent list are empty. Cause: Restoring only project configuration files does not synchronize the database business data snapshot. Both types of backups must be restored simultaneously.
How to Confirm Configurations Are Correct
- Execute a database connection test script to verify successful connection and ability to read the previous day's advertising placement data. Confirm field types and units match expected values.
- Trigger a full sync task, confirm the database partition table automatically generates the current day's partition, and that the number of synced data entries matches the number reported by third-party data sources.
- Submit an incremental sync task, verify incremental data from the past 15 minutes is correctly written to the database with no duplicate or missing records.
- Attempt to connect to the database from an unauthorized IP, confirm access is blocked, and verify the whitelist configuration is active.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.