A company stores credit card data in a SQL database for recurring billing after authorization.How can this be done in a PCI DSS compliant manner?

By employing end$-$to$-$end encryption with the use of strong cryptographic algorithms and key management practices.

By utilizing a Payment Card Industry PIN Transaction Security$($PCI PTS$)$ approved Hardware Security Module $($HSM$)$ for cryptographic key management and PIN processing in compliance with the ANSI X$9\mathrm{.}24$ standard.

By implementing a Security Information and Event Management$($SIEM$)$ system for real$-$time monitoring, correlation, and analysis of security events, coupled with regular log reviews and alerting mechanisms. By leveraging a Content Delivery Network $($CDN$)$ with WebApplication Firewall $($WAF$)$ capabilities to protect against Layer $7$DDoS attacks and application$-$layer vulnerabilities that may expose stored cardholder data.