**Exhibit 31.2****CERTIFICATIONS**I, Linda J. Miles, certify that:      1) I have reviewed this quarterly report on Form 10-Q of Bank of Commerce Holdings (the“registrant”);      2) Based on my knowledge, this quarterly report does not contain any untrue statement of amaterial fact or omit to state a material fact necessary to make the statements made, in light ofthe circumstances under which such statements were made, not misleading with respect to the periodcovered by this annual report;      3) Based on my knowledge, the financial statements, and other financial information includedin this quarterly report, fairly present in all material respects the financial condition, resultsof operations and cash flows of the registrant as of, and for, the periods presented in thisquarterly report;      4) The registrant’s other certifying officer and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules13a-15(f) and 15d-15(f)) for the registrant and have:a. Designed such disclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervisions, to ensure that material information relating tothe registrant, including its consolidated subsidiaries, is made known to us by others within thoseentities, particularly during the period in which this quarterly report is being prepared;b. Designed such internal control over financial reporting, or caused such internal controlover financial reporting to be designed under our supervision, to provide reasonable assuranceregarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principles;c. Evaluated the effectiveness of the issuer’s disclosure controls and procedures and presentedin this report our conclusions about the effectiveness of the disclosure controls and procedures asof the end of the period covered by this report based on such evaluation; andd. Disclosed in this report any change in the issuer’s internal control over financial reportingthat occurred during the issuer’s most recent fiscal quarter (the issuer’s fourth fiscal quarter inthe case of an annual report) that has materially affected, or is reasonably likely to materiallyaffect, the issuer’s internal control over financial reporting; and;5. The issuer’s other certifying officer(s) and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the issuer’s auditors and the auditcommittee of issuer’s board of directors (or persons performing the equivalent functions):a. All significant deficiencies and material weaknesses in the design or operation of internalcontrol over financial reporting which are reasonably likely to adversely affect the issuer’sability to record, process, summarize and report financial information; andb. Any fraud, whether or not material, that involves management or other employees who have asignificant role in the issuer’s internal control over financial reporting./s/ LINDA J. MILESLinda J. Miles