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PostgreSQL
简介
安装/配置
需求
安装
运行时配置
资源类型
预定义常量
范例
Basic usage
Basic usage
PostgreSQL 函数
pg_affected_rows
— 返回受影响的记录数目
pg_cancel_query
— 取消异步查询
pg_client_encoding
— 取得客户端编码方式
pg_close
— 关闭一个 PostgreSQL 连接
pg_connect_poll
— 正在进行尝试轮询 PostgreSQL 链接状态。
pg_connect
— 打开一个 PostgreSQL 连接
pg_connection_busy
— 获知连接是否为忙
pg_connection_reset
— 重置连接(再次连接)
pg_connection_status
— 获得连接状态
pg_consume_input
— Reads input on the connection
pg_convert
— 将关联的数组值转换为适合 SQL 语句的格式。
pg_copy_from
— 根据数组将记录插入表中
pg_copy_to
— 将一个表拷贝到数组中
pg_dbname
— 获得数据库名
pg_delete
— 删除记录
pg_end_copy
— 与 PostgreSQL 后端同步
pg_escape_bytea
— 转义 bytea 类型的二进制数据
pg_escape_identifier
— Escape a identifier for insertion into a text field
pg_escape_literal
— Escape a literal for insertion into a text field
pg_escape_string
— 转义 text/char 类型的字符串
pg_execute
— Sends a request to execute a prepared statement with given parameters, and waits for the result
pg_fetch_all_columns
— Fetches all rows in a particular result column as an array
pg_fetch_all
— 从结果中提取所有行作为一个数组
pg_fetch_array
— 提取一行作为数组
pg_fetch_assoc
— 提取一行作为关联数组
pg_fetch_object
— 提取一行作为对象
pg_fetch_result
— 从结果资源中返回值
pg_fetch_row
— 提取一行作为枚举数组
pg_field_is_null
— 测试字段是否为 null
pg_field_name
— 返回字段的名字
pg_field_num
— 返回字段的编号
pg_field_prtlen
— 返回打印出来的长度
pg_field_size
— 返回指定字段占用内部存储空间的大小
pg_field_table
— Returns the name or oid of the tables field
pg_field_type_oid
— Returns the type ID (OID) for the corresponding field number
pg_field_type
— 返回相应字段的类型名称
pg_flush
— 刷新链接中已处理的数据查询
pg_free_result
— 释放查询结果占用的内存
pg_get_notify
— Ping 数据库连接
pg_get_pid
— Ping 数据库连接
pg_get_result
— 取得异步查询结果
pg_host
— 返回和某连接关联的主机名
pg_insert
— 将数组插入到表中
pg_last_error
— 得到某连接的最后一条错误信息
pg_last_notice
— 返回 PostgreSQL 服务器最新一条公告信息
pg_last_oid
— 返回上一个对象的 oid
pg_lo_close
— 关闭一个大型对象
pg_lo_create
— 新建一个大型对象
pg_lo_export
— 将大型对象导出到文件
pg_lo_import
— 将文件导入为大型对象
pg_lo_open
— 打开一个大型对象
pg_lo_read_all
— 读入整个大型对象并直接发送给浏览器
pg_lo_read
— 从大型对象中读入数据
pg_lo_seek
— 移动大型对象中的指针
pg_lo_tell
— 返回大型对象的当前指针位置
pg_lo_truncate
— Truncates a large object
pg_lo_unlink
— 删除一个大型对象
pg_lo_write
— 向大型对象写入数据
pg_meta_data
— 获得表的元数据
pg_num_fields
— 返回字段的数目
pg_num_rows
— 返回行的数目
pg_options
— 获得和连接有关的选项
pg_parameter_status
— Looks up a current parameter setting of the server
pg_pconnect
— 打开一个持久的 PostgreSQL 连接
pg_ping
— Ping 数据库连接
pg_port
— 返回该连接的端口号
pg_prepare
— Submits a request to create a prepared statement with the given parameters, and waits for completion
pg_put_line
— 向 PostgreSQL 后端发送以 NULL 结尾的字符串
pg_query_params
— Submits a command to the server and waits for the result, with the ability to pass parameters separately from the SQL command text
pg_query
— 执行查询
pg_result_error_field
— Returns an individual field of an error report
pg_result_error
— 获得查询结果的错误信息
pg_result_seek
— 在结果资源中设定内部行偏移量
pg_result_status
— 获得查询结果的状态
pg_select
— 选择记录
pg_send_execute
— Sends a request to execute a prepared statement with given parameters, without waiting for the result(s)
pg_send_prepare
— Sends a request to create a prepared statement with the given parameters, without waiting for completion
pg_send_query_params
— Submits a command and separate parameters to the server without waiting for the result(s)
pg_send_query
— 发送异步查询
pg_set_client_encoding
— 设定客户端编码
pg_set_error_verbosity
— Determines the verbosity of messages returned by pg_last_error and pg_result_error
pg_socket
— Get a read only handle to the socket underlying a PostgreSQL connection
pg_trace
— 启动一个 PostgreSQL 连接的追踪功能
pg_transaction_status
— Returns the current in-transaction status of the server
pg_tty
— 返回该连接的 tty 号
pg_unescape_bytea
— 取消 bytea 类型中的字符串转义
pg_untrace
— 关闭 PostgreSQL 连接的追踪功能
pg_update
— 更新表
pg_version
— Returns an array with client, protocol and server version (when available)
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