# Databases

On the Lido protocol, we have the following databases to store various types of data:

<table><thead><tr><th width="258">Databases</th><th>Description</th><th data-hidden></th></tr></thead><tbody><tr><td>LidoSubmission</td><td>Records user deposits into the Lido protocol, including sender, amount, shares minted, and pool totals.</td><td></td></tr><tr><td>LidoTransfer</td><td>Tracks transfers of Lido shares between addresses, including balances before and after.</td><td></td></tr><tr><td>SharesBurn</td><td>Stores data related to burning of Lido shares during rebase events.</td><td></td></tr><tr><td>LidoApproval</td><td>Captures approval events where an account grants permission to another address to spend tokens.</td><td></td></tr><tr><td>CurrentFee</td><td>Stores the current fee configuration for the Lido protocol, including fee breakdown.</td><td></td></tr><tr><td>LidoConfig</td><td>Contains general configuration settings for the Lido protocol, such as addresses, limits, and flags.</td><td></td></tr><tr><td>LidoTotals</td><td>Stores the total amount of Ether pooled and total Lido shares in circulation.</td><td></td></tr><tr><td>LidoStats</td><td>Provides statistics about Lido, including unique holders and the last completed oracle report ID.</td><td></td></tr><tr><td>LidoHolder</td><td>Lists addresses that hold Lido shares and their current balance status.</td><td></td></tr><tr><td>LidoShares</td><td>Stores the number of Lido shares held by each address.</td><td></td></tr><tr><td>LidoOracleConfig</td><td>Contains configuration settings for the Lido oracle, such as quorum size and epoch details.</td><td></td></tr><tr><td>LidoOracleReport</td><td>Stores data about oracle reports, including total rewards, hash, and items processed.</td><td></td></tr><tr><td>LidoOracleComplete</td><td>Records completed oracle reports, including epoch ID, beacon balance, and transaction details.</td><td></td></tr><tr><td>LidoTotalReward</td><td>Stores information about total rewards earned, fees, APR, and share allocations.</td><td></td></tr><tr><td>LidoOracleMember</td><td>Lists members of the Lido oracle and their removal status.</td><td></td></tr><tr><td>LidoNodeOperatorFees</td><td>Records fees allocated to each node operator based on total rewards.</td><td></td></tr><tr><td>LidoNodeOperatorShares</td><td>Stores the number of Lido shares allocated to each node operator.</td><td></td></tr><tr><td>LidoBeaconReport</td><td>Contains beacon reports submitted by callers, including epoch ID, balance, and validators.</td><td></td></tr><tr><td>LidoOracleExpectedEpoch</td><td>Lists the expected epoch IDs for which oracle reports should be generated.</td><td></td></tr></tbody></table>


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