What certificate do programmers who want to develop in the direction of database need to take?

Oracle Bone Inscriptions certification is divided into OCA, OCP and OCM. Everyone needs to take the exam to get the corresponding certificate \x0d\ OCA: \x0d\ Basic conditions for applying for OCA: \ x0d \ Education: There is no restriction on candidates' diplomas when applying for OCA, and anyone can apply for and get this certificate; \x0d\ Ability: Have some knowledge of OCA. OCA certification is one of the most important authoritative certifications in the world. If there is OCA certification, then companies with the strength to enter the IT industry will add a heavy weight. Its certificate holders will enjoy the credit-free treatment of OCA-related majors around the world, and also serve as the technical evaluation standard for immigrants from some countries in North America. Obtaining any level of OCA certification means that you are one of the most important people in the IT field. \ x0d \ OCP: \ x0d \ Training course: \ x0d \ Oracle database 1 1g: SQL Foundation I (SQL Foundation I test code 1Z0-05 1)\ x0d \ Oracle database 1 1g: management workshop I (examination code of management course exercise I 1Z0-052)\x0d\ Oracle database 16 theory course 120 hours, and you can listen to it again for free; The experiment time is not limited. \x0d\ Note: To pass the OCP exam, you must obtain the original OCP training record of the training institution authorized by Oracle Bone Inscriptions before you can obtain the OCP certificate. \x0d\ Additional: 9iOCP- 1 1g OCP: You need to pass the exam of 1Z0-055; \ x0d \10gocp-1kloc-0/gopp: you need to pass the exam of 1Z0-050; \ x0d \ OCM: \ x0d \ OCM prerequisites: \x0d\ 1. Must first pass OCA and OCP certification; \x0d\ 2。 Participate in the two-day laboratory operation test organized by Oracle company; \x0d\ 3。 Attend at least two original training courses related to OCM in Oracle Bone Inscriptions University; \x0d\ Oracle (Oracle Bone Inscriptions) database certification examination process: OCA- OCP-OCM\x0d\ OCA examination can be registered in any training examination center authorized by Oracle or VUE examination room. \x0d\ OCP certificate can only be obtained after the original factory training authorized by ORACLE or the training examination of authorized center of Oracle WDP program. At present, the OCM test in China can only be conducted at Oracle Bone Inscriptions University in Beijing and Shanghai. The exam lasts for 2 days and costs 2000 dollars. \x0d\ OCM exam: I took the exam in Oracle Bone Inscriptions University in Beijing and Shanghai. \x0d\ 9i/ 10g OCM upgrade 1 1g OCM process: \ x0d \ 9iocm-1gocm: you need to select one (1z0-048. \ x0d \10 gocm-1 1 gocm: You need to pass the exam of11gocm or1gcmu.