我正在尝试使用REF CURSOR
参数执行存储过程。
我的存储过程是这样的:
PROCEDURE procName(p_in_str IN VARCHAR2, p_out_result IN OUT SYS_REFCURSOR) ...
我根据这些帖子尝试从 R 中执行它:
在许多错误之后,我已经到了无法前进的地步。这些是我目前的方法
尝试 1
# Not error but not return data temp_output1 <- data.frame(p_in_str = "My string", stringsAsFactors = FALSE) attr(temp_output1$p_in_str, "ora.parameter_name") <- "p_in_str"; attr(temp_output1$p_in_str, "ora.parameter_mode") <- "IN"; rs <- oracleProc(con, "DECLARE c SYS_REFCURSOR; BEGIN procname(:p_in_str, c); END;", data = temp_output1)
尝试 2
# Wrong number or types of arguments temp_output2 <-data.frame(p_in_str = "My string", p_out_ref = "p_out_ref", stringsAsFactors = FALSE) attr(temp_output2$p_in_str, "ora.parameter_name") <- "p_in_str"; attr(temp_output2$p_in_str, "ora.parameter_mode") <- "IN"; attr(temp_output2$p_out_ref, "ora.parameter_name") <- "p_out_ref"; attr(temp_output2$p_out_ref, "ora.parameter_mode") <- "IN OUT"; attr(temp_output2$p_out_ref, "ora.type") <- "SYS_REFCURSOR" rs <- oracleProc(con, "BEGIN procname(:p_in_str, :p_out_ref); END;", data = temp_output2)
.oci.oracleProc(conn, statement, data = data, prefetch = prefetch,
: ORA-06550: 第 2 行第 18 列: PLS-00306: 调用“procname”时参数数量或类型错误 ORA-06550:第 2 行第 18 列:PL/SQL:语句被忽略尝试 3
# Bind data does not match bind specification temp_output3 <-data.frame(p_in_str = "My string", p_out_ref = as.character(NA), stringsAsFactors = FALSE) attr(temp_output3$p_in_str, "ora.parameter_name") <- "p_in_str"; attr(temp_output3$p_in_str, "ora.parameter_mode") <- "IN"; attr(temp_output3$p_out_ref, "ora.parameter_name") <- "p_out_ref"; attr(temp_output3$p_out_ref, "ora.parameter_mode") <- "IN OUT"; attr(temp_output3$p_out_ref, "ora.type") <- "m_ref_cursor" rs <- oracleProc(con, "DECLARE c SYS_REFCURSOR; BEGIN procname(:p_in_str, c); END;", data = temp_output3)
.oci.oracleProc(conn, statement, data = data, prefetch = prefetch, 中的错误:绑定数据与绑定规范不匹配