high-speed check-row valve 高速方形穴播阀
row check row planter 双行方形穴播机
check-row clutch 方形穴播同步离合器
check row device 正条密植器
two row check row planter 双行方形穴播机
check-row drill 方形穴播机
parity check row 奇偶校验行
check-row planter 方形穴播机
N a row of plants, esp corn, in which the spaces between adjacent plants are equal to those between adjacent rows to facilitate cultivation 农作物列
V to plant in checkrows 按列栽种
Syscat.checks Contains a row for each table check constraint db2 select constname, tabname, text from syscat.checks.
checks为每个表检查约束保持一个行db2 select constname, tabname, text from syscat . checks。
SYSCAT.COLCHECKS Contains a row for each column that is referenced by a table check constraint db2 select constname, tabname, colname, usage from syscat.colchecks
COLCHECKS 为表检查约束所引用的每个列保持一个行 db2 select constname, tabname, colname, usage from syscat.colchecks
When you want to determine whether a given row includes a comment, you no longer need to check for a null value in the COMMENT column.
确定某一个行是否包含注释时，不再需要检查 COMMENT 列的 null 值。
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